25351420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 56827008

約数和(自身を除く): 31475588

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 173, 340, 346, 431, 692, 862, 865, 1724, 1730, 2155, 2941, 3460, 4310, 5882, 7327, 8620, 11764, 14654, 14705, 29308, 29410, 36635, 58820, 73270, 74563, 146540, 149126, 298252, 372815, 745630, 1267571, 1491260, 2535142, 5070284, 6337855, 12675710, 25351420]

約数ペア:

[(1, 25351420), (2, 12675710), (4, 6337855), (5, 5070284), (10, 2535142), (17, 1491260), (20, 1267571), (34, 745630), (68, 372815), (85, 298252), (170, 149126), (173, 146540), (340, 74563), (346, 73270), (431, 58820), (692, 36635), (862, 29410), (865, 29308), (1724, 14705), (1730, 14654), (2155, 11764), (2941, 8620), (3460, 7327), (4310, 5882)]