81329040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8689}}^1$

素因数の和:8721

約数の個数: 120

約数和(自身を含む): 294173880

約数和(自身を除く): 212844840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 8689, 9360, 17378, 26067, 34756, 43445, 52134, 69512, 78201, 86890, 104268, 112957, 130335, 139024, 156402, 173780, 208536, 225914, 260670, 312804, 338871, 347560, 391005, 417072, 451828, 521340, 564785, 625608, 677742, 695120, 782010, 903656, 1016613, 1042680, 1129570, 1251216, 1355484, 1564020, 1694355, 1807312, 2033226, 2085360, 2259140, 2710968, 3128040, 3388710, 4066452, 4518280, 5083065, 5421936, 6256080, 6777420, 8132904, 9036560, 10166130, 13554840, 16265808, 20332260, 27109680, 40664520, 81329040]

約数ペア:

[(1, 81329040), (2, 40664520), (3, 27109680), (4, 20332260), (5, 16265808), (6, 13554840), (8, 10166130), (9, 9036560), (10, 8132904), (12, 6777420), (13, 6256080), (15, 5421936), (16, 5083065), (18, 4518280), (20, 4066452), (24, 3388710), (26, 3128040), (30, 2710968), (36, 2259140), (39, 2085360), (40, 2033226), (45, 1807312), (48, 1694355), (52, 1564020), (60, 1355484), (65, 1251216), (72, 1129570), (78, 1042680), (80, 1016613), (90, 903656), (104, 782010), (117, 695120), (120, 677742), (130, 625608), (144, 564785), (156, 521340), (180, 451828), (195, 417072), (208, 391005), (234, 347560), (240, 338871), (260, 312804), (312, 260670), (360, 225914), (390, 208536), (468, 173780), (520, 156402), (585, 139024), (624, 130335), (720, 112957), (780, 104268), (936, 86890), (1040, 78201), (1170, 69512), (1560, 52134), (1872, 43445), (2340, 34756), (3120, 26067), (4680, 17378), (8689, 9360)]