15639975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5347}}^1$

素因数の和:5376

約数の個数: 36

約数和(自身を含む): 30173416

約数和(自身を除く): 14533441

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 5347, 16041, 26735, 48123, 69511, 80205, 133675, 208533, 240615, 347555, 401025, 625599, 1042665, 1203075, 1737775, 3127995, 5213325, 15639975]

約数ペア:

[(1, 15639975), (3, 5213325), (5, 3127995), (9, 1737775), (13, 1203075), (15, 1042665), (25, 625599), (39, 401025), (45, 347555), (65, 240615), (75, 208533), (117, 133675), (195, 80205), (225, 69511), (325, 48123), (585, 26735), (975, 16041), (2925, 5347)]