171355940

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{24979}}^1$

素因数の和:25009

約数の個数: 48

約数和(自身を含む): 419664000

約数和(自身を除く): 248308060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 24979, 49958, 99916, 124895, 174853, 249790, 349706, 499580, 699412, 874265, 1223971, 1748530, 2447942, 3497060, 4895884, 6119855, 8567797, 12239710, 17135594, 24479420, 34271188, 42838985, 85677970, 171355940]

約数ペア:

[(1, 171355940), (2, 85677970), (4, 42838985), (5, 34271188), (7, 24479420), (10, 17135594), (14, 12239710), (20, 8567797), (28, 6119855), (35, 4895884), (49, 3497060), (70, 2447942), (98, 1748530), (140, 1223971), (196, 874265), (245, 699412), (343, 499580), (490, 349706), (686, 249790), (980, 174853), (1372, 124895), (1715, 99916), (3430, 49958), (6860, 24979)]