21894480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:713

約数の個数: 120

約数和(自身を含む): 75209472

約数和(自身を除く): 53314992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 470, 564, 647, 705, 720, 752, 846, 940, 1128, 1294, 1410, 1692, 1880, 1941, 2115, 2256, 2588, 2820, 3235, 3384, 3760, 3882, 4230, 5176, 5640, 5823, 6470, 6768, 7764, 8460, 9705, 10352, 11280, 11646, 12940, 15528, 16920, 19410, 23292, 25880, 29115, 30409, 31056, 33840, 38820, 46584, 51760, 58230, 60818, 77640, 91227, 93168, 116460, 121636, 152045, 155280, 182454, 232920, 243272, 273681, 304090, 364908, 456135, 465840, 486544, 547362, 608180, 729816, 912270, 1094724, 1216360, 1368405, 1459632, 1824540, 2189448, 2432720, 2736810, 3649080, 4378896, 5473620, 7298160, 10947240, 21894480]

約数ペア:

[(1, 21894480), (2, 10947240), (3, 7298160), (4, 5473620), (5, 4378896), (6, 3649080), (8, 2736810), (9, 2432720), (10, 2189448), (12, 1824540), (15, 1459632), (16, 1368405), (18, 1216360), (20, 1094724), (24, 912270), (30, 729816), (36, 608180), (40, 547362), (45, 486544), (47, 465840), (48, 456135), (60, 364908), (72, 304090), (80, 273681), (90, 243272), (94, 232920), (120, 182454), (141, 155280), (144, 152045), (180, 121636), (188, 116460), (235, 93168), (240, 91227), (282, 77640), (360, 60818), (376, 58230), (423, 51760), (470, 46584), (564, 38820), (647, 33840), (705, 31056), (720, 30409), (752, 29115), (846, 25880), (940, 23292), (1128, 19410), (1294, 16920), (1410, 15528), (1692, 12940), (1880, 11646), (1941, 11280), (2115, 10352), (2256, 9705), (2588, 8460), (2820, 7764), (3235, 6768), (3384, 6470), (3760, 5823), (3882, 5640), (4230, 5176)]