13812500

素因数分解:

$2^2\times 5^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:64

約数の個数: 84

約数和(自身を含む): 34452684

約数和(自身を除く): 20640184

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 125, 130, 170, 221, 250, 260, 325, 340, 425, 442, 500, 625, 650, 850, 884, 1105, 1250, 1300, 1625, 1700, 2125, 2210, 2500, 3125, 3250, 4250, 4420, 5525, 6250, 6500, 8125, 8500, 10625, 11050, 12500, 15625, 16250, 21250, 22100, 27625, 31250, 32500, 40625, 42500, 53125, 55250, 62500, 81250, 106250, 110500, 138125, 162500, 203125, 212500, 265625, 276250, 406250, 531250, 552500, 690625, 812500, 1062500, 1381250, 2762500, 3453125, 6906250, 13812500]

約数ペア:

[(1, 13812500), (2, 6906250), (4, 3453125), (5, 2762500), (10, 1381250), (13, 1062500), (17, 812500), (20, 690625), (25, 552500), (26, 531250), (34, 406250), (50, 276250), (52, 265625), (65, 212500), (68, 203125), (85, 162500), (100, 138125), (125, 110500), (130, 106250), (170, 81250), (221, 62500), (250, 55250), (260, 53125), (325, 42500), (340, 40625), (425, 32500), (442, 31250), (500, 27625), (625, 22100), (650, 21250), (850, 16250), (884, 15625), (1105, 12500), (1250, 11050), (1300, 10625), (1625, 8500), (1700, 8125), (2125, 6500), (2210, 6250), (2500, 5525), (3125, 4420), (3250, 4250)]