639996240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:582

約数の個数: 240

約数和(自身を含む): 2222000640

約数和(自身を除く): 1582004400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 39, 40, 48, 52, 60, 62, 65, 78, 80, 93, 104, 120, 124, 130, 155, 156, 169, 186, 195, 208, 240, 248, 260, 310, 312, 338, 372, 390, 403, 465, 496, 507, 509, 520, 620, 624, 676, 744, 780, 806, 845, 930, 1014, 1018, 1040, 1209, 1240, 1352, 1488, 1527, 1560, 1612, 1690, 1860, 2015, 2028, 2036, 2418, 2480, 2535, 2545, 2704, 3054, 3120, 3224, 3380, 3720, 4030, 4056, 4072, 4836, 5070, 5090, 5239, 6045, 6108, 6448, 6617, 6760, 7440, 7635, 8060, 8112, 8144, 9672, 10140, 10180, 10478, 12090, 12216, 13234, 13520, 15270, 15717, 15779, 16120, 19344, 19851, 20280, 20360, 20956, 24180, 24432, 26195, 26468, 30540, 31434, 31558, 32240, 33085, 39702, 40560, 40720, 41912, 47337, 48360, 52390, 52936, 61080, 62868, 63116, 66170, 78585, 78895, 79404, 83824, 86021, 94674, 96720, 99255, 104780, 105872, 122160, 125736, 126232, 132340, 157170, 157790, 158808, 172042, 189348, 198510, 205127, 209560, 236685, 251472, 252464, 258063, 264680, 314340, 315580, 317616, 344084, 378696, 397020, 410254, 419120, 430105, 473370, 516126, 529360, 615381, 628680, 631160, 688168, 757392, 794040, 820508, 860210, 946740, 1025635, 1032252, 1230762, 1257360, 1262320, 1290315, 1376336, 1588080, 1641016, 1720420, 1893480, 2051270, 2064504, 2461524, 2580630, 2666651, 3076905, 3282032, 3440840, 3786960, 4102540, 4129008, 4923048, 5161260, 5333302, 6153810, 6881680, 7999953, 8205080, 9846096, 10322520, 10666604, 12307620, 13333255, 15999906, 16410160, 20645040, 21333208, 24615240, 26666510, 31999812, 39999765, 42666416, 49230480, 53333020, 63999624, 79999530, 106666040, 127999248, 159999060, 213332080, 319998120, 639996240]

約数ペア:

[(1, 639996240), (2, 319998120), (3, 213332080), (4, 159999060), (5, 127999248), (6, 106666040), (8, 79999530), (10, 63999624), (12, 53333020), (13, 49230480), (15, 42666416), (16, 39999765), (20, 31999812), (24, 26666510), (26, 24615240), (30, 21333208), (31, 20645040), (39, 16410160), (40, 15999906), (48, 13333255), (52, 12307620), (60, 10666604), (62, 10322520), (65, 9846096), (78, 8205080), (80, 7999953), (93, 6881680), (104, 6153810), (120, 5333302), (124, 5161260), (130, 4923048), (155, 4129008), (156, 4102540), (169, 3786960), (186, 3440840), (195, 3282032), (208, 3076905), (240, 2666651), (248, 2580630), (260, 2461524), (310, 2064504), (312, 2051270), (338, 1893480), (372, 1720420), (390, 1641016), (403, 1588080), (465, 1376336), (496, 1290315), (507, 1262320), (509, 1257360), (520, 1230762), (620, 1032252), (624, 1025635), (676, 946740), (744, 860210), (780, 820508), (806, 794040), (845, 757392), (930, 688168), (1014, 631160), (1018, 628680), (1040, 615381), (1209, 529360), (1240, 516126), (1352, 473370), (1488, 430105), (1527, 419120), (1560, 410254), (1612, 397020), (1690, 378696), (1860, 344084), (2015, 317616), (2028, 315580), (2036, 314340), (2418, 264680), (2480, 258063), (2535, 252464), (2545, 251472), (2704, 236685), (3054, 209560), (3120, 205127), (3224, 198510), (3380, 189348), (3720, 172042), (4030, 158808), (4056, 157790), (4072, 157170), (4836, 132340), (5070, 126232), (5090, 125736), (5239, 122160), (6045, 105872), (6108, 104780), (6448, 99255), (6617, 96720), (6760, 94674), (7440, 86021), (7635, 83824), (8060, 79404), (8112, 78895), (8144, 78585), (9672, 66170), (10140, 63116), (10180, 62868), (10478, 61080), (12090, 52936), (12216, 52390), (13234, 48360), (13520, 47337), (15270, 41912), (15717, 40720), (15779, 40560), (16120, 39702), (19344, 33085), (19851, 32240), (20280, 31558), (20360, 31434), (20956, 30540), (24180, 26468), (24432, 26195)]