18222640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13399}}^1$

素因数の和:13429

約数の個数: 40

約数和(自身を含む): 44863200

約数和(自身を除く): 26640560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13399, 26798, 53596, 66995, 107192, 133990, 214384, 227783, 267980, 455566, 535960, 911132, 1071920, 1138915, 1822264, 2277830, 3644528, 4555660, 9111320, 18222640]

約数ペア:

[(1, 18222640), (2, 9111320), (4, 4555660), (5, 3644528), (8, 2277830), (10, 1822264), (16, 1138915), (17, 1071920), (20, 911132), (34, 535960), (40, 455566), (68, 267980), (80, 227783), (85, 214384), (136, 133990), (170, 107192), (272, 66995), (340, 53596), (680, 26798), (1360, 13399)]