21987480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 68230800

約数和(自身を除く): 46243320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 109, 120, 123, 164, 205, 218, 246, 327, 328, 410, 436, 492, 545, 615, 654, 820, 872, 984, 1090, 1230, 1308, 1635, 1640, 1681, 2180, 2460, 2616, 3270, 3362, 4360, 4469, 4920, 5043, 6540, 6724, 8405, 8938, 10086, 13080, 13407, 13448, 16810, 17876, 20172, 22345, 25215, 26814, 33620, 35752, 40344, 44690, 50430, 53628, 67035, 67240, 89380, 100860, 107256, 134070, 178760, 183229, 201720, 268140, 366458, 536280, 549687, 732916, 916145, 1099374, 1465832, 1832290, 2198748, 2748435, 3664580, 4397496, 5496870, 7329160, 10993740, 21987480]

約数ペア:

[(1, 21987480), (2, 10993740), (3, 7329160), (4, 5496870), (5, 4397496), (6, 3664580), (8, 2748435), (10, 2198748), (12, 1832290), (15, 1465832), (20, 1099374), (24, 916145), (30, 732916), (40, 549687), (41, 536280), (60, 366458), (82, 268140), (109, 201720), (120, 183229), (123, 178760), (164, 134070), (205, 107256), (218, 100860), (246, 89380), (327, 67240), (328, 67035), (410, 53628), (436, 50430), (492, 44690), (545, 40344), (615, 35752), (654, 33620), (820, 26814), (872, 25215), (984, 22345), (1090, 20172), (1230, 17876), (1308, 16810), (1635, 13448), (1640, 13407), (1681, 13080), (2180, 10086), (2460, 8938), (2616, 8405), (3270, 6724), (3362, 6540), (4360, 5043), (4469, 4920)]