781100012

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^3\times {\mathrm{20959}}^1$

素因数の和:21003

約数の個数: 48

約数和(自身を含む): 1718384640

約数和(自身を除く): 937284628

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1331, 1694, 2662, 3388, 5324, 9317, 18634, 20959, 37268, 41918, 83836, 146713, 230549, 293426, 461098, 586852, 922196, 1613843, 2536039, 3227686, 5072078, 6455372, 10144156, 17752273, 27896429, 35504546, 55792858, 71009092, 111585716, 195275003, 390550006, 781100012]

約数ペア:

[(1, 781100012), (2, 390550006), (4, 195275003), (7, 111585716), (11, 71009092), (14, 55792858), (22, 35504546), (28, 27896429), (44, 17752273), (77, 10144156), (121, 6455372), (154, 5072078), (242, 3227686), (308, 2536039), (484, 1613843), (847, 922196), (1331, 586852), (1694, 461098), (2662, 293426), (3388, 230549), (5324, 146713), (9317, 83836), (18634, 41918), (20959, 37268)]