18680350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1045

約数の個数: 48

約数和(自身を含む): 38747520

約数和(自身を除く): 20067170

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 50, 58, 65, 130, 145, 290, 325, 377, 650, 725, 754, 991, 1450, 1885, 1982, 3770, 4955, 9425, 9910, 12883, 18850, 24775, 25766, 28739, 49550, 57478, 64415, 128830, 143695, 287390, 322075, 373607, 644150, 718475, 747214, 1436950, 1868035, 3736070, 9340175, 18680350]

約数ペア:

[(1, 18680350), (2, 9340175), (5, 3736070), (10, 1868035), (13, 1436950), (25, 747214), (26, 718475), (29, 644150), (50, 373607), (58, 322075), (65, 287390), (130, 143695), (145, 128830), (290, 64415), (325, 57478), (377, 49550), (650, 28739), (725, 25766), (754, 24775), (991, 18850), (1450, 12883), (1885, 9910), (1982, 9425), (3770, 4955)]