20382830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:461

約数の個数: 64

約数和(自身を含む): 43763328

約数和(自身を除く): 23380498

約数列:

[1, 2, 5, 10, 13, 17, 23, 26, 34, 46, 65, 85, 115, 130, 170, 221, 230, 299, 391, 401, 442, 598, 782, 802, 1105, 1495, 1955, 2005, 2210, 2990, 3910, 4010, 5083, 5213, 6817, 9223, 10166, 10426, 13634, 18446, 25415, 26065, 34085, 46115, 50830, 52130, 68170, 88621, 92230, 119899, 156791, 177242, 239798, 313582, 443105, 599495, 783955, 886210, 1198990, 1567910, 2038283, 4076566, 10191415, 20382830]

約数ペア:

[(1, 20382830), (2, 10191415), (5, 4076566), (10, 2038283), (13, 1567910), (17, 1198990), (23, 886210), (26, 783955), (34, 599495), (46, 443105), (65, 313582), (85, 239798), (115, 177242), (130, 156791), (170, 119899), (221, 92230), (230, 88621), (299, 68170), (391, 52130), (401, 50830), (442, 46115), (598, 34085), (782, 26065), (802, 25415), (1105, 18446), (1495, 13634), (1955, 10426), (2005, 10166), (2210, 9223), (2990, 6817), (3910, 5213), (4010, 5083)]