21234480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{859}}^1$

素因数の和:978

約数の個数: 80

約数和(自身を含む): 66543360

約数和(自身を除く): 45308880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 103, 120, 206, 240, 309, 412, 515, 618, 824, 859, 1030, 1236, 1545, 1648, 1718, 2060, 2472, 2577, 3090, 3436, 4120, 4295, 4944, 5154, 6180, 6872, 8240, 8590, 10308, 12360, 12885, 13744, 17180, 20616, 24720, 25770, 34360, 41232, 51540, 68720, 88477, 103080, 176954, 206160, 265431, 353908, 442385, 530862, 707816, 884770, 1061724, 1327155, 1415632, 1769540, 2123448, 2654310, 3539080, 4246896, 5308620, 7078160, 10617240, 21234480]

約数ペア:

[(1, 21234480), (2, 10617240), (3, 7078160), (4, 5308620), (5, 4246896), (6, 3539080), (8, 2654310), (10, 2123448), (12, 1769540), (15, 1415632), (16, 1327155), (20, 1061724), (24, 884770), (30, 707816), (40, 530862), (48, 442385), (60, 353908), (80, 265431), (103, 206160), (120, 176954), (206, 103080), (240, 88477), (309, 68720), (412, 51540), (515, 41232), (618, 34360), (824, 25770), (859, 24720), (1030, 20616), (1236, 17180), (1545, 13744), (1648, 12885), (1718, 12360), (2060, 10308), (2472, 8590), (2577, 8240), (3090, 6872), (3436, 6180), (4120, 5154), (4295, 4944)]