20266920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2963}}^1$

素因数の和:2999

約数の個数: 96

約数和(自身を含む): 69357600

約数和(自身を除く): 49090680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 2963, 3420, 5926, 6840, 8889, 11852, 14815, 17778, 23704, 26667, 29630, 35556, 44445, 53334, 56297, 59260, 71112, 88890, 106668, 112594, 118520, 133335, 168891, 177780, 213336, 225188, 266670, 281485, 337782, 355560, 450376, 506673, 533340, 562970, 675564, 844455, 1013346, 1066680, 1125940, 1351128, 1688910, 2026692, 2251880, 2533365, 3377820, 4053384, 5066730, 6755640, 10133460, 20266920]

約数ペア:

[(1, 20266920), (2, 10133460), (3, 6755640), (4, 5066730), (5, 4053384), (6, 3377820), (8, 2533365), (9, 2251880), (10, 2026692), (12, 1688910), (15, 1351128), (18, 1125940), (19, 1066680), (20, 1013346), (24, 844455), (30, 675564), (36, 562970), (38, 533340), (40, 506673), (45, 450376), (57, 355560), (60, 337782), (72, 281485), (76, 266670), (90, 225188), (95, 213336), (114, 177780), (120, 168891), (152, 133335), (171, 118520), (180, 112594), (190, 106668), (228, 88890), (285, 71112), (342, 59260), (360, 56297), (380, 53334), (456, 44445), (570, 35556), (684, 29630), (760, 26667), (855, 23704), (1140, 17778), (1368, 14815), (1710, 11852), (2280, 8889), (2963, 6840), (3420, 5926)]