21990480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1553}}^1$

素因数の和:1628

約数の個数: 80

約数和(自身を含む): 69370560

約数和(自身を除く): 47380080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 59, 60, 80, 118, 120, 177, 236, 240, 295, 354, 472, 590, 708, 885, 944, 1180, 1416, 1553, 1770, 2360, 2832, 3106, 3540, 4659, 4720, 6212, 7080, 7765, 9318, 12424, 14160, 15530, 18636, 23295, 24848, 31060, 37272, 46590, 62120, 74544, 91627, 93180, 124240, 183254, 186360, 274881, 366508, 372720, 458135, 549762, 733016, 916270, 1099524, 1374405, 1466032, 1832540, 2199048, 2748810, 3665080, 4398096, 5497620, 7330160, 10995240, 21990480]

約数ペア:

[(1, 21990480), (2, 10995240), (3, 7330160), (4, 5497620), (5, 4398096), (6, 3665080), (8, 2748810), (10, 2199048), (12, 1832540), (15, 1466032), (16, 1374405), (20, 1099524), (24, 916270), (30, 733016), (40, 549762), (48, 458135), (59, 372720), (60, 366508), (80, 274881), (118, 186360), (120, 183254), (177, 124240), (236, 93180), (240, 91627), (295, 74544), (354, 62120), (472, 46590), (590, 37272), (708, 31060), (885, 24848), (944, 23295), (1180, 18636), (1416, 15530), (1553, 14160), (1770, 12424), (2360, 9318), (2832, 7765), (3106, 7080), (3540, 6212), (4659, 4720)]