25661175

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 44282880

約数和(自身を除く): 18621705

約数列:

[1, 3, 5, 15, 25, 61, 71, 75, 79, 183, 213, 237, 305, 355, 395, 915, 1065, 1185, 1525, 1775, 1975, 4331, 4575, 4819, 5325, 5609, 5925, 12993, 14457, 16827, 21655, 24095, 28045, 64965, 72285, 84135, 108275, 120475, 140225, 324825, 342149, 361425, 420675, 1026447, 1710745, 5132235, 8553725, 25661175]

約数ペア:

[(1, 25661175), (3, 8553725), (5, 5132235), (15, 1710745), (25, 1026447), (61, 420675), (71, 361425), (75, 342149), (79, 324825), (183, 140225), (213, 120475), (237, 108275), (305, 84135), (355, 72285), (395, 64965), (915, 28045), (1065, 24095), (1185, 21655), (1525, 16827), (1775, 14457), (1975, 12993), (4331, 5925), (4575, 5609), (4819, 5325)]