21370320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:529

約数の個数: 120

約数和(自身を含む): 73004256

約数和(自身を除く): 51633936

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 67, 72, 80, 90, 120, 134, 144, 180, 201, 240, 268, 335, 360, 402, 443, 536, 603, 670, 720, 804, 886, 1005, 1072, 1206, 1329, 1340, 1608, 1772, 2010, 2215, 2412, 2658, 2680, 3015, 3216, 3544, 3987, 4020, 4430, 4824, 5316, 5360, 6030, 6645, 7088, 7974, 8040, 8860, 9648, 10632, 12060, 13290, 15948, 16080, 17720, 19935, 21264, 24120, 26580, 29681, 31896, 35440, 39870, 48240, 53160, 59362, 63792, 79740, 89043, 106320, 118724, 148405, 159480, 178086, 237448, 267129, 296810, 318960, 356172, 445215, 474896, 534258, 593620, 712344, 890430, 1068516, 1187240, 1335645, 1424688, 1780860, 2137032, 2374480, 2671290, 3561720, 4274064, 5342580, 7123440, 10685160, 21370320]

約数ペア:

[(1, 21370320), (2, 10685160), (3, 7123440), (4, 5342580), (5, 4274064), (6, 3561720), (8, 2671290), (9, 2374480), (10, 2137032), (12, 1780860), (15, 1424688), (16, 1335645), (18, 1187240), (20, 1068516), (24, 890430), (30, 712344), (36, 593620), (40, 534258), (45, 474896), (48, 445215), (60, 356172), (67, 318960), (72, 296810), (80, 267129), (90, 237448), (120, 178086), (134, 159480), (144, 148405), (180, 118724), (201, 106320), (240, 89043), (268, 79740), (335, 63792), (360, 59362), (402, 53160), (443, 48240), (536, 39870), (603, 35440), (670, 31896), (720, 29681), (804, 26580), (886, 24120), (1005, 21264), (1072, 19935), (1206, 17720), (1329, 16080), (1340, 15948), (1608, 13290), (1772, 12060), (2010, 10632), (2215, 9648), (2412, 8860), (2658, 8040), (2680, 7974), (3015, 7088), (3216, 6645), (3544, 6030), (3987, 5360), (4020, 5316), (4430, 4824)]