1918280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 128

約数和(自身を含む): 5806080

約数和(自身を除く): 3887800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 31, 34, 35, 40, 52, 56, 62, 65, 68, 70, 85, 91, 104, 119, 124, 130, 136, 140, 155, 170, 182, 217, 221, 238, 248, 260, 280, 310, 340, 364, 403, 434, 442, 455, 476, 520, 527, 595, 620, 680, 728, 806, 868, 884, 910, 952, 1054, 1085, 1105, 1190, 1240, 1547, 1612, 1736, 1768, 1820, 2015, 2108, 2170, 2210, 2380, 2635, 2821, 3094, 3224, 3640, 3689, 4030, 4216, 4340, 4420, 4760, 5270, 5642, 6188, 6851, 7378, 7735, 8060, 8680, 8840, 10540, 11284, 12376, 13702, 14105, 14756, 15470, 16120, 18445, 21080, 22568, 27404, 28210, 29512, 30940, 34255, 36890, 47957, 54808, 56420, 61880, 68510, 73780, 95914, 112840, 137020, 147560, 191828, 239785, 274040, 383656, 479570, 959140, 1918280]

約数ペア:

[(1, 1918280), (2, 959140), (4, 479570), (5, 383656), (7, 274040), (8, 239785), (10, 191828), (13, 147560), (14, 137020), (17, 112840), (20, 95914), (26, 73780), (28, 68510), (31, 61880), (34, 56420), (35, 54808), (40, 47957), (52, 36890), (56, 34255), (62, 30940), (65, 29512), (68, 28210), (70, 27404), (85, 22568), (91, 21080), (104, 18445), (119, 16120), (124, 15470), (130, 14756), (136, 14105), (140, 13702), (155, 12376), (170, 11284), (182, 10540), (217, 8840), (221, 8680), (238, 8060), (248, 7735), (260, 7378), (280, 6851), (310, 6188), (340, 5642), (364, 5270), (403, 4760), (434, 4420), (442, 4340), (455, 4216), (476, 4030), (520, 3689), (527, 3640), (595, 3224), (620, 3094), (680, 2821), (728, 2635), (806, 2380), (868, 2210), (884, 2170), (910, 2108), (952, 2015), (1054, 1820), (1085, 1768), (1105, 1736), (1190, 1612), (1240, 1547)]