20185340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4651}}^1$

素因数の和:4698

約数の個数: 48

約数和(自身を含む): 50018304

約数和(自身を除く): 29832964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4651, 9302, 18604, 23255, 32557, 46510, 65114, 93020, 130228, 144181, 162785, 288362, 325570, 576724, 651140, 720905, 1009267, 1441810, 2018534, 2883620, 4037068, 5046335, 10092670, 20185340]

約数ペア:

[(1, 20185340), (2, 10092670), (4, 5046335), (5, 4037068), (7, 2883620), (10, 2018534), (14, 1441810), (20, 1009267), (28, 720905), (31, 651140), (35, 576724), (62, 325570), (70, 288362), (124, 162785), (140, 144181), (155, 130228), (217, 93020), (310, 65114), (434, 46510), (620, 32557), (868, 23255), (1085, 18604), (2170, 9302), (4340, 4651)]