1381250

素因数分解:

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

素因数の和:57

約数の個数: 48

約数和(自身を含む): 2952936

約数和(自身を除く): 1571686

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 125, 130, 170, 221, 250, 325, 425, 442, 625, 650, 850, 1105, 1250, 1625, 2125, 2210, 3125, 3250, 4250, 5525, 6250, 8125, 10625, 11050, 16250, 21250, 27625, 40625, 53125, 55250, 81250, 106250, 138125, 276250, 690625, 1381250]

約数ペア:

[(1, 1381250), (2, 690625), (5, 276250), (10, 138125), (13, 106250), (17, 81250), (25, 55250), (26, 53125), (34, 40625), (50, 27625), (65, 21250), (85, 16250), (125, 11050), (130, 10625), (170, 8125), (221, 6250), (250, 5525), (325, 4250), (425, 3250), (442, 3125), (625, 2210), (650, 2125), (850, 1625), (1105, 1250)]