81143420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1\times {\mathrm{293}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 174551328

約数和(自身を除く): 93407908

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 227, 244, 293, 305, 454, 586, 610, 908, 1135, 1172, 1220, 1465, 2270, 2930, 4540, 5860, 13847, 17873, 27694, 35746, 55388, 66511, 69235, 71492, 89365, 133022, 138470, 178730, 266044, 276940, 332555, 357460, 665110, 1330220, 4057171, 8114342, 16228684, 20285855, 40571710, 81143420]

約数ペア:

[(1, 81143420), (2, 40571710), (4, 20285855), (5, 16228684), (10, 8114342), (20, 4057171), (61, 1330220), (122, 665110), (227, 357460), (244, 332555), (293, 276940), (305, 266044), (454, 178730), (586, 138470), (610, 133022), (908, 89365), (1135, 71492), (1172, 69235), (1220, 66511), (1465, 55388), (2270, 35746), (2930, 27694), (4540, 17873), (5860, 13847)]