87661420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{56923}}^1$

素因数の和:56950

約数の個数: 48

約数和(自身を含む): 229517568

約数和(自身を除く): 141856148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 56923, 113846, 227692, 284615, 398461, 569230, 626153, 796922, 1138460, 1252306, 1593844, 1992305, 2504612, 3130765, 3984610, 4383071, 6261530, 7969220, 8766142, 12523060, 17532284, 21915355, 43830710, 87661420]

約数ペア:

[(1, 87661420), (2, 43830710), (4, 21915355), (5, 17532284), (7, 12523060), (10, 8766142), (11, 7969220), (14, 6261530), (20, 4383071), (22, 3984610), (28, 3130765), (35, 2504612), (44, 1992305), (55, 1593844), (70, 1252306), (77, 1138460), (110, 796922), (140, 626153), (154, 569230), (220, 398461), (308, 284615), (385, 227692), (770, 113846), (1540, 56923)]