81913890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{2251}}^1$

素因数の和:3474

約数の個数: 32

約数和(自身を含む): 196842816

約数和(自身を除く): 114928926

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 1213, 2251, 2426, 3639, 4502, 6065, 6753, 7278, 11255, 12130, 13506, 18195, 22510, 33765, 36390, 67530, 2730463, 5460926, 8191389, 13652315, 16382778, 27304630, 40956945, 81913890]

約数ペア:

[(1, 81913890), (2, 40956945), (3, 27304630), (5, 16382778), (6, 13652315), (10, 8191389), (15, 5460926), (30, 2730463), (1213, 67530), (2251, 36390), (2426, 33765), (3639, 22510), (4502, 18195), (6065, 13506), (6753, 12130), (7278, 11255)]