1640668860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2351}}^1\times {\mathrm{3877}}^1$

素因数の和:6243

約数の個数: 72

約数和(自身を含む): 4980096576

約数和(自身を除く): 3339427716

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2351, 3877, 4702, 7053, 7754, 9404, 11631, 11755, 14106, 15508, 19385, 21159, 23262, 23510, 28212, 34893, 35265, 38770, 42318, 46524, 47020, 58155, 69786, 70530, 77540, 84636, 105795, 116310, 139572, 141060, 174465, 211590, 232620, 348930, 423180, 697860, 9114827, 18229654, 27344481, 36459308, 45574135, 54688962, 82033443, 91148270, 109377924, 136722405, 164066886, 182296540, 273444810, 328133772, 410167215, 546889620, 820334430, 1640668860]

約数ペア:

[(1, 1640668860), (2, 820334430), (3, 546889620), (4, 410167215), (5, 328133772), (6, 273444810), (9, 182296540), (10, 164066886), (12, 136722405), (15, 109377924), (18, 91148270), (20, 82033443), (30, 54688962), (36, 45574135), (45, 36459308), (60, 27344481), (90, 18229654), (180, 9114827), (2351, 697860), (3877, 423180), (4702, 348930), (7053, 232620), (7754, 211590), (9404, 174465), (11631, 141060), (11755, 139572), (14106, 116310), (15508, 105795), (19385, 84636), (21159, 77540), (23262, 70530), (23510, 69786), (28212, 58155), (34893, 47020), (35265, 46524), (38770, 42318)]