78870020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{751}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 170553600

約数和(自身を除く): 91683580

約数列:

[1, 2, 4, 5, 10, 20, 59, 89, 118, 178, 236, 295, 356, 445, 590, 751, 890, 1180, 1502, 1780, 3004, 3755, 5251, 7510, 10502, 15020, 21004, 26255, 44309, 52510, 66839, 88618, 105020, 133678, 177236, 221545, 267356, 334195, 443090, 668390, 886180, 1336780, 3943501, 7887002, 15774004, 19717505, 39435010, 78870020]

約数ペア:

[(1, 78870020), (2, 39435010), (4, 19717505), (5, 15774004), (10, 7887002), (20, 3943501), (59, 1336780), (89, 886180), (118, 668390), (178, 443090), (236, 334195), (295, 267356), (356, 221545), (445, 177236), (590, 133678), (751, 105020), (890, 88618), (1180, 66839), (1502, 52510), (1780, 44309), (3004, 26255), (3755, 21004), (5251, 15020), (7510, 10502)]