18198520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 25139720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 131, 151, 184, 230, 262, 302, 460, 524, 604, 655, 755, 920, 1048, 1208, 1310, 1510, 2620, 3013, 3020, 3473, 5240, 6026, 6040, 6946, 12052, 13892, 15065, 17365, 19781, 24104, 27784, 30130, 34730, 39562, 60260, 69460, 79124, 98905, 120520, 138920, 158248, 197810, 395620, 454963, 791240, 909926, 1819852, 2274815, 3639704, 4549630, 9099260, 18198520]

約数ペア:

[(1, 18198520), (2, 9099260), (4, 4549630), (5, 3639704), (8, 2274815), (10, 1819852), (20, 909926), (23, 791240), (40, 454963), (46, 395620), (92, 197810), (115, 158248), (131, 138920), (151, 120520), (184, 98905), (230, 79124), (262, 69460), (302, 60260), (460, 39562), (524, 34730), (604, 30130), (655, 27784), (755, 24104), (920, 19781), (1048, 17365), (1208, 15065), (1310, 13892), (1510, 12052), (2620, 6946), (3013, 6040), (3020, 6026), (3473, 5240)]