6987500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 16842672

約数和(自身を除く): 9855172

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 125, 130, 172, 215, 250, 260, 325, 430, 500, 559, 625, 650, 860, 1075, 1118, 1250, 1300, 1625, 2150, 2236, 2500, 2795, 3125, 3250, 4300, 5375, 5590, 6250, 6500, 8125, 10750, 11180, 12500, 13975, 16250, 21500, 26875, 27950, 32500, 40625, 53750, 55900, 69875, 81250, 107500, 134375, 139750, 162500, 268750, 279500, 349375, 537500, 698750, 1397500, 1746875, 3493750, 6987500]

約数ペア:

[(1, 6987500), (2, 3493750), (4, 1746875), (5, 1397500), (10, 698750), (13, 537500), (20, 349375), (25, 279500), (26, 268750), (43, 162500), (50, 139750), (52, 134375), (65, 107500), (86, 81250), (100, 69875), (125, 55900), (130, 53750), (172, 40625), (215, 32500), (250, 27950), (260, 26875), (325, 21500), (430, 16250), (500, 13975), (559, 12500), (625, 11180), (650, 10750), (860, 8125), (1075, 6500), (1118, 6250), (1250, 5590), (1300, 5375), (1625, 4300), (2150, 3250), (2236, 3125), (2500, 2795)]