81390060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3253}}^1$

素因数の和:3407

約数の個数: 72

約数和(自身を含む): 248735760

約数和(自身を除く): 167345700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 3253, 4170, 5004, 6255, 6506, 8340, 9759, 12510, 13012, 16265, 19518, 25020, 29277, 32530, 39036, 48795, 58554, 65060, 97590, 117108, 146385, 195180, 292770, 452167, 585540, 904334, 1356501, 1808668, 2260835, 2713002, 4069503, 4521670, 5426004, 6782505, 8139006, 9043340, 13565010, 16278012, 20347515, 27130020, 40695030, 81390060]

約数ペア:

[(1, 81390060), (2, 40695030), (3, 27130020), (4, 20347515), (5, 16278012), (6, 13565010), (9, 9043340), (10, 8139006), (12, 6782505), (15, 5426004), (18, 4521670), (20, 4069503), (30, 2713002), (36, 2260835), (45, 1808668), (60, 1356501), (90, 904334), (139, 585540), (180, 452167), (278, 292770), (417, 195180), (556, 146385), (695, 117108), (834, 97590), (1251, 65060), (1390, 58554), (1668, 48795), (2085, 39036), (2502, 32530), (2780, 29277), (3253, 25020), (4170, 19518), (5004, 16265), (6255, 13012), (6506, 12510), (8340, 9759)]