15225460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 34070400

約数和(自身を除く): 18844940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 389, 412, 515, 778, 1030, 1556, 1945, 1957, 2060, 3890, 3914, 7391, 7780, 7828, 9785, 14782, 19570, 29564, 36955, 39140, 40067, 73910, 80134, 147820, 160268, 200335, 400670, 761273, 801340, 1522546, 3045092, 3806365, 7612730, 15225460]

約数ペア:

[(1, 15225460), (2, 7612730), (4, 3806365), (5, 3045092), (10, 1522546), (19, 801340), (20, 761273), (38, 400670), (76, 200335), (95, 160268), (103, 147820), (190, 80134), (206, 73910), (380, 40067), (389, 39140), (412, 36955), (515, 29564), (778, 19570), (1030, 14782), (1556, 9785), (1945, 7828), (1957, 7780), (2060, 7391), (3890, 3914)]