21781920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1973}}^1$

素因数の和:2014

約数の個数: 96

約数和(自身を含む): 71632512

約数和(自身を除く): 49850592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 184, 230, 240, 276, 345, 368, 460, 480, 552, 690, 736, 920, 1104, 1380, 1840, 1973, 2208, 2760, 3680, 3946, 5520, 5919, 7892, 9865, 11040, 11838, 15784, 19730, 23676, 29595, 31568, 39460, 45379, 47352, 59190, 63136, 78920, 90758, 94704, 118380, 136137, 157840, 181516, 189408, 226895, 236760, 272274, 315680, 363032, 453790, 473520, 544548, 680685, 726064, 907580, 947040, 1089096, 1361370, 1452128, 1815160, 2178192, 2722740, 3630320, 4356384, 5445480, 7260640, 10890960, 21781920]

約数ペア:

[(1, 21781920), (2, 10890960), (3, 7260640), (4, 5445480), (5, 4356384), (6, 3630320), (8, 2722740), (10, 2178192), (12, 1815160), (15, 1452128), (16, 1361370), (20, 1089096), (23, 947040), (24, 907580), (30, 726064), (32, 680685), (40, 544548), (46, 473520), (48, 453790), (60, 363032), (69, 315680), (80, 272274), (92, 236760), (96, 226895), (115, 189408), (120, 181516), (138, 157840), (160, 136137), (184, 118380), (230, 94704), (240, 90758), (276, 78920), (345, 63136), (368, 59190), (460, 47352), (480, 45379), (552, 39460), (690, 31568), (736, 29595), (920, 23676), (1104, 19730), (1380, 15784), (1840, 11838), (1973, 11040), (2208, 9865), (2760, 7892), (3680, 5919), (3946, 5520)]