420627720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{81517}}^1$

素因数の和:81574

約数の個数: 64

約数和(自身を含む): 1291245120

約数和(自身を除く): 870617400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 5160, 81517, 163034, 244551, 326068, 407585, 489102, 652136, 815170, 978204, 1222755, 1630340, 1956408, 2445510, 3260680, 3505231, 4891020, 7010462, 9782040, 10515693, 14020924, 17526155, 21031386, 28041848, 35052310, 42062772, 52578465, 70104620, 84125544, 105156930, 140209240, 210313860, 420627720]

約数ペア:

[(1, 420627720), (2, 210313860), (3, 140209240), (4, 105156930), (5, 84125544), (6, 70104620), (8, 52578465), (10, 42062772), (12, 35052310), (15, 28041848), (20, 21031386), (24, 17526155), (30, 14020924), (40, 10515693), (43, 9782040), (60, 7010462), (86, 4891020), (120, 3505231), (129, 3260680), (172, 2445510), (215, 1956408), (258, 1630340), (344, 1222755), (430, 978204), (516, 815170), (645, 652136), (860, 489102), (1032, 407585), (1290, 326068), (1720, 244551), (2580, 163034), (5160, 81517)]