2515720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 5722200

約数和(自身を除く): 3206480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 577, 872, 1090, 1154, 2180, 2308, 2885, 4360, 4616, 5770, 11540, 23080, 62893, 125786, 251572, 314465, 503144, 628930, 1257860, 2515720]

約数ペア:

[(1, 2515720), (2, 1257860), (4, 628930), (5, 503144), (8, 314465), (10, 251572), (20, 125786), (40, 62893), (109, 23080), (218, 11540), (436, 5770), (545, 4616), (577, 4360), (872, 2885), (1090, 2308), (1154, 2180)]