20111880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8821}}^1$

素因数の和:8854

約数の個数: 64

約数和(自身を含む): 63518400

約数和(自身を除く): 43406520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 8821, 17642, 26463, 35284, 44105, 52926, 70568, 88210, 105852, 132315, 167599, 176420, 211704, 264630, 335198, 352840, 502797, 529260, 670396, 837995, 1005594, 1058520, 1340792, 1675990, 2011188, 2513985, 3351980, 4022376, 5027970, 6703960, 10055940, 20111880]

約数ペア:

[(1, 20111880), (2, 10055940), (3, 6703960), (4, 5027970), (5, 4022376), (6, 3351980), (8, 2513985), (10, 2011188), (12, 1675990), (15, 1340792), (19, 1058520), (20, 1005594), (24, 837995), (30, 670396), (38, 529260), (40, 502797), (57, 352840), (60, 335198), (76, 264630), (95, 211704), (114, 176420), (120, 167599), (152, 132315), (190, 105852), (228, 88210), (285, 70568), (380, 52926), (456, 44105), (570, 35284), (760, 26463), (1140, 17642), (2280, 8821)]