203420120

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{7717}}^1$

素因数の和:8387

約数の個数: 32

約数和(自身を含む): 458449200

約数和(自身を除く): 255029080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 1318, 2636, 3295, 5272, 6590, 7717, 13180, 15434, 26360, 30868, 38585, 61736, 77170, 154340, 308680, 5085503, 10171006, 20342012, 25427515, 40684024, 50855030, 101710060, 203420120]

約数ペア:

[(1, 203420120), (2, 101710060), (4, 50855030), (5, 40684024), (8, 25427515), (10, 20342012), (20, 10171006), (40, 5085503), (659, 308680), (1318, 154340), (2636, 77170), (3295, 61736), (5272, 38585), (6590, 30868), (7717, 26360), (13180, 15434)]