2005640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:79

約数の個数: 128

約数和(自身を含む): 6048000

約数和(自身を除く): 4042360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 29, 35, 38, 40, 52, 56, 58, 65, 70, 76, 91, 95, 104, 116, 130, 133, 140, 145, 152, 182, 190, 203, 232, 247, 260, 266, 280, 290, 364, 377, 380, 406, 455, 494, 520, 532, 551, 580, 665, 728, 754, 760, 812, 910, 988, 1015, 1064, 1102, 1160, 1235, 1330, 1508, 1624, 1729, 1820, 1885, 1976, 2030, 2204, 2470, 2639, 2660, 2755, 3016, 3458, 3640, 3770, 3857, 4060, 4408, 4940, 5278, 5320, 5510, 6916, 7163, 7540, 7714, 8120, 8645, 9880, 10556, 11020, 13195, 13832, 14326, 15080, 15428, 17290, 19285, 21112, 22040, 26390, 28652, 30856, 34580, 35815, 38570, 50141, 52780, 57304, 69160, 71630, 77140, 100282, 105560, 143260, 154280, 200564, 250705, 286520, 401128, 501410, 1002820, 2005640]

約数ペア:

[(1, 2005640), (2, 1002820), (4, 501410), (5, 401128), (7, 286520), (8, 250705), (10, 200564), (13, 154280), (14, 143260), (19, 105560), (20, 100282), (26, 77140), (28, 71630), (29, 69160), (35, 57304), (38, 52780), (40, 50141), (52, 38570), (56, 35815), (58, 34580), (65, 30856), (70, 28652), (76, 26390), (91, 22040), (95, 21112), (104, 19285), (116, 17290), (130, 15428), (133, 15080), (140, 14326), (145, 13832), (152, 13195), (182, 11020), (190, 10556), (203, 9880), (232, 8645), (247, 8120), (260, 7714), (266, 7540), (280, 7163), (290, 6916), (364, 5510), (377, 5320), (380, 5278), (406, 4940), (455, 4408), (494, 4060), (520, 3857), (532, 3770), (551, 3640), (580, 3458), (665, 3016), (728, 2755), (754, 2660), (760, 2639), (812, 2470), (910, 2204), (988, 2030), (1015, 1976), (1064, 1885), (1102, 1820), (1160, 1729), (1235, 1624), (1330, 1508)]