640114920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{53}}^2\times {\mathrm{211}}^1$

素因数の和:337

約数の個数: 192

約数和(自身を含む): 2185041600

約数和(自身を除く): 1544926680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 90, 106, 108, 120, 135, 159, 180, 211, 212, 216, 265, 270, 318, 360, 422, 424, 477, 530, 540, 633, 636, 795, 844, 954, 1055, 1060, 1080, 1266, 1272, 1431, 1590, 1688, 1899, 1908, 2110, 2120, 2385, 2532, 2809, 2862, 3165, 3180, 3798, 3816, 4220, 4770, 5064, 5618, 5697, 5724, 6330, 6360, 7155, 7596, 8427, 8440, 9495, 9540, 11183, 11236, 11394, 11448, 12660, 14045, 14310, 15192, 16854, 18990, 19080, 22366, 22472, 22788, 25281, 25320, 28090, 28485, 28620, 33549, 33708, 37980, 42135, 44732, 45576, 50562, 55915, 56180, 56970, 57240, 67098, 67416, 75843, 75960, 84270, 89464, 100647, 101124, 111830, 112360, 113940, 126405, 134196, 151686, 167745, 168540, 201294, 202248, 223660, 227880, 252810, 268392, 301941, 303372, 335490, 337080, 379215, 402588, 447320, 503235, 505620, 592699, 603882, 606744, 670980, 758430, 805176, 1006470, 1011240, 1185398, 1207764, 1341960, 1509705, 1516860, 1778097, 2012940, 2370796, 2415528, 2963495, 3019410, 3033720, 3556194, 4025880, 4741592, 5334291, 5926990, 6038820, 7112388, 8890485, 10668582, 11853980, 12077640, 14224776, 16002873, 17780970, 21337164, 23707960, 26671455, 32005746, 35561940, 42674328, 53342910, 64011492, 71123880, 80014365, 106685820, 128022984, 160028730, 213371640, 320057460, 640114920]

約数ペア:

[(1, 640114920), (2, 320057460), (3, 213371640), (4, 160028730), (5, 128022984), (6, 106685820), (8, 80014365), (9, 71123880), (10, 64011492), (12, 53342910), (15, 42674328), (18, 35561940), (20, 32005746), (24, 26671455), (27, 23707960), (30, 21337164), (36, 17780970), (40, 16002873), (45, 14224776), (53, 12077640), (54, 11853980), (60, 10668582), (72, 8890485), (90, 7112388), (106, 6038820), (108, 5926990), (120, 5334291), (135, 4741592), (159, 4025880), (180, 3556194), (211, 3033720), (212, 3019410), (216, 2963495), (265, 2415528), (270, 2370796), (318, 2012940), (360, 1778097), (422, 1516860), (424, 1509705), (477, 1341960), (530, 1207764), (540, 1185398), (633, 1011240), (636, 1006470), (795, 805176), (844, 758430), (954, 670980), (1055, 606744), (1060, 603882), (1080, 592699), (1266, 505620), (1272, 503235), (1431, 447320), (1590, 402588), (1688, 379215), (1899, 337080), (1908, 335490), (2110, 303372), (2120, 301941), (2385, 268392), (2532, 252810), (2809, 227880), (2862, 223660), (3165, 202248), (3180, 201294), (3798, 168540), (3816, 167745), (4220, 151686), (4770, 134196), (5064, 126405), (5618, 113940), (5697, 112360), (5724, 111830), (6330, 101124), (6360, 100647), (7155, 89464), (7596, 84270), (8427, 75960), (8440, 75843), (9495, 67416), (9540, 67098), (11183, 57240), (11236, 56970), (11394, 56180), (11448, 55915), (12660, 50562), (14045, 45576), (14310, 44732), (15192, 42135), (16854, 37980), (18990, 33708), (19080, 33549), (22366, 28620), (22472, 28485), (22788, 28090), (25281, 25320)]