20941040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{599}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 53568000

約数和(自身を除く): 32626960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 38, 40, 46, 76, 80, 92, 95, 115, 152, 184, 190, 230, 304, 368, 380, 437, 460, 599, 760, 874, 920, 1198, 1520, 1748, 1840, 2185, 2396, 2995, 3496, 4370, 4792, 5990, 6992, 8740, 9584, 11381, 11980, 13777, 17480, 22762, 23960, 27554, 34960, 45524, 47920, 55108, 56905, 68885, 91048, 110216, 113810, 137770, 182096, 220432, 227620, 261763, 275540, 455240, 523526, 551080, 910480, 1047052, 1102160, 1308815, 2094104, 2617630, 4188208, 5235260, 10470520, 20941040]

約数ペア:

[(1, 20941040), (2, 10470520), (4, 5235260), (5, 4188208), (8, 2617630), (10, 2094104), (16, 1308815), (19, 1102160), (20, 1047052), (23, 910480), (38, 551080), (40, 523526), (46, 455240), (76, 275540), (80, 261763), (92, 227620), (95, 220432), (115, 182096), (152, 137770), (184, 113810), (190, 110216), (230, 91048), (304, 68885), (368, 56905), (380, 55108), (437, 47920), (460, 45524), (599, 34960), (760, 27554), (874, 23960), (920, 22762), (1198, 17480), (1520, 13777), (1748, 11980), (1840, 11381), (2185, 9584), (2396, 8740), (2995, 6992), (3496, 5990), (4370, 4792)]