20354080

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5531}}^1$

素因数の和:5569

約数の個数: 48

約数和(自身を含む): 50186304

約数和(自身を除く): 29832224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5531, 11062, 22124, 27655, 44248, 55310, 88496, 110620, 127213, 176992, 221240, 254426, 442480, 508852, 636065, 884960, 1017704, 1272130, 2035408, 2544260, 4070816, 5088520, 10177040, 20354080]

約数ペア:

[(1, 20354080), (2, 10177040), (4, 5088520), (5, 4070816), (8, 2544260), (10, 2035408), (16, 1272130), (20, 1017704), (23, 884960), (32, 636065), (40, 508852), (46, 442480), (80, 254426), (92, 221240), (115, 176992), (160, 127213), (184, 110620), (230, 88496), (368, 55310), (460, 44248), (736, 27655), (920, 22124), (1840, 11062), (3680, 5531)]