640546920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1061}}^1$

素因数の和:1137

約数の個数: 256

約数和(自身を含む): 2355091200

約数和(自身を除く): 1714544280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 43, 45, 52, 54, 60, 65, 72, 78, 86, 90, 104, 108, 117, 120, 129, 130, 135, 156, 172, 180, 195, 215, 216, 234, 258, 260, 270, 312, 344, 351, 360, 387, 390, 430, 468, 516, 520, 540, 559, 585, 645, 702, 774, 780, 860, 936, 1032, 1061, 1080, 1118, 1161, 1170, 1290, 1404, 1548, 1560, 1677, 1720, 1755, 1935, 2122, 2236, 2322, 2340, 2580, 2795, 2808, 3096, 3183, 3354, 3510, 3870, 4244, 4472, 4644, 4680, 5031, 5160, 5305, 5590, 5805, 6366, 6708, 7020, 7740, 8385, 8488, 9288, 9549, 10062, 10610, 11180, 11610, 12732, 13416, 13793, 14040, 15093, 15480, 15915, 16770, 19098, 20124, 21220, 22360, 23220, 25155, 25464, 27586, 28647, 30186, 31830, 33540, 38196, 40248, 41379, 42440, 45623, 46440, 47745, 50310, 55172, 57294, 60372, 63660, 67080, 68965, 75465, 76392, 82758, 91246, 95490, 100620, 110344, 114588, 120744, 124137, 127320, 136869, 137930, 143235, 150930, 165516, 182492, 190980, 201240, 206895, 228115, 229176, 248274, 273738, 275860, 286470, 301860, 331032, 364984, 372411, 381960, 410607, 413790, 456230, 496548, 547476, 551720, 572940, 593099, 603720, 620685, 684345, 744822, 821214, 827580, 912460, 993096, 1094952, 1145880, 1186198, 1231821, 1241370, 1368690, 1489644, 1642428, 1655160, 1779297, 1824920, 1862055, 2053035, 2372396, 2463642, 2482740, 2737380, 2965495, 2979288, 3284856, 3558594, 3724110, 4106070, 4744792, 4927284, 4965480, 5337891, 5474760, 5930990, 6159105, 7117188, 7448220, 8212140, 8896485, 9854568, 10675782, 11861980, 12318210, 14234376, 14896440, 16013673, 16424280, 17792970, 21351564, 23723960, 24636420, 26689455, 32027346, 35585940, 42703128, 49272840, 53378910, 64054692, 71171880, 80068365, 106757820, 128109384, 160136730, 213515640, 320273460, 640546920]

約数ペア:

[(1, 640546920), (2, 320273460), (3, 213515640), (4, 160136730), (5, 128109384), (6, 106757820), (8, 80068365), (9, 71171880), (10, 64054692), (12, 53378910), (13, 49272840), (15, 42703128), (18, 35585940), (20, 32027346), (24, 26689455), (26, 24636420), (27, 23723960), (30, 21351564), (36, 17792970), (39, 16424280), (40, 16013673), (43, 14896440), (45, 14234376), (52, 12318210), (54, 11861980), (60, 10675782), (65, 9854568), (72, 8896485), (78, 8212140), (86, 7448220), (90, 7117188), (104, 6159105), (108, 5930990), (117, 5474760), (120, 5337891), (129, 4965480), (130, 4927284), (135, 4744792), (156, 4106070), (172, 3724110), (180, 3558594), (195, 3284856), (215, 2979288), (216, 2965495), (234, 2737380), (258, 2482740), (260, 2463642), (270, 2372396), (312, 2053035), (344, 1862055), (351, 1824920), (360, 1779297), (387, 1655160), (390, 1642428), (430, 1489644), (468, 1368690), (516, 1241370), (520, 1231821), (540, 1186198), (559, 1145880), (585, 1094952), (645, 993096), (702, 912460), (774, 827580), (780, 821214), (860, 744822), (936, 684345), (1032, 620685), (1061, 603720), (1080, 593099), (1118, 572940), (1161, 551720), (1170, 547476), (1290, 496548), (1404, 456230), (1548, 413790), (1560, 410607), (1677, 381960), (1720, 372411), (1755, 364984), (1935, 331032), (2122, 301860), (2236, 286470), (2322, 275860), (2340, 273738), (2580, 248274), (2795, 229176), (2808, 228115), (3096, 206895), (3183, 201240), (3354, 190980), (3510, 182492), (3870, 165516), (4244, 150930), (4472, 143235), (4644, 137930), (4680, 136869), (5031, 127320), (5160, 124137), (5305, 120744), (5590, 114588), (5805, 110344), (6366, 100620), (6708, 95490), (7020, 91246), (7740, 82758), (8385, 76392), (8488, 75465), (9288, 68965), (9549, 67080), (10062, 63660), (10610, 60372), (11180, 57294), (11610, 55172), (12732, 50310), (13416, 47745), (13793, 46440), (14040, 45623), (15093, 42440), (15480, 41379), (15915, 40248), (16770, 38196), (19098, 33540), (20124, 31830), (21220, 30186), (22360, 28647), (23220, 27586), (25155, 25464)]