212512020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:151

約数の個数: 216

約数和(自身を含む): 725975712

約数和(自身を除く): 513463692

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 43, 49, 60, 70, 82, 84, 86, 98, 105, 123, 129, 140, 147, 164, 172, 196, 205, 210, 215, 245, 246, 258, 287, 294, 301, 410, 420, 430, 490, 492, 516, 574, 588, 602, 615, 645, 735, 820, 860, 861, 903, 980, 1148, 1204, 1230, 1290, 1435, 1470, 1505, 1681, 1722, 1763, 1806, 2009, 2107, 2460, 2580, 2870, 2940, 3010, 3362, 3444, 3526, 3612, 4018, 4214, 4305, 4515, 5043, 5289, 5740, 6020, 6027, 6321, 6724, 7052, 8036, 8405, 8428, 8610, 8815, 9030, 10045, 10086, 10535, 10578, 11767, 12054, 12341, 12642, 16810, 17220, 17630, 18060, 20090, 20172, 21070, 21156, 23534, 24108, 24682, 25215, 25284, 26445, 30135, 31605, 33620, 35260, 35301, 37023, 40180, 42140, 47068, 49364, 50430, 52890, 58835, 60270, 61705, 63210, 70602, 72283, 74046, 82369, 86387, 100860, 105780, 117670, 120540, 123410, 126420, 141204, 144566, 148092, 164738, 172774, 176505, 185115, 216849, 235340, 246820, 247107, 259161, 289132, 329476, 345548, 353010, 361415, 370230, 411845, 431935, 433698, 494214, 505981, 518322, 706020, 722830, 740460, 823690, 863870, 867396, 988428, 1011962, 1036644, 1084245, 1235535, 1295805, 1445660, 1517943, 1647380, 1727740, 2023924, 2168490, 2471070, 2529905, 2591610, 3035886, 3541867, 4336980, 4942140, 5059810, 5183220, 6071772, 7083734, 7589715, 10119620, 10625601, 14167468, 15179430, 17709335, 21251202, 30358860, 35418670, 42502404, 53128005, 70837340, 106256010, 212512020]

約数ペア:

[(1, 212512020), (2, 106256010), (3, 70837340), (4, 53128005), (5, 42502404), (6, 35418670), (7, 30358860), (10, 21251202), (12, 17709335), (14, 15179430), (15, 14167468), (20, 10625601), (21, 10119620), (28, 7589715), (30, 7083734), (35, 6071772), (41, 5183220), (42, 5059810), (43, 4942140), (49, 4336980), (60, 3541867), (70, 3035886), (82, 2591610), (84, 2529905), (86, 2471070), (98, 2168490), (105, 2023924), (123, 1727740), (129, 1647380), (140, 1517943), (147, 1445660), (164, 1295805), (172, 1235535), (196, 1084245), (205, 1036644), (210, 1011962), (215, 988428), (245, 867396), (246, 863870), (258, 823690), (287, 740460), (294, 722830), (301, 706020), (410, 518322), (420, 505981), (430, 494214), (490, 433698), (492, 431935), (516, 411845), (574, 370230), (588, 361415), (602, 353010), (615, 345548), (645, 329476), (735, 289132), (820, 259161), (860, 247107), (861, 246820), (903, 235340), (980, 216849), (1148, 185115), (1204, 176505), (1230, 172774), (1290, 164738), (1435, 148092), (1470, 144566), (1505, 141204), (1681, 126420), (1722, 123410), (1763, 120540), (1806, 117670), (2009, 105780), (2107, 100860), (2460, 86387), (2580, 82369), (2870, 74046), (2940, 72283), (3010, 70602), (3362, 63210), (3444, 61705), (3526, 60270), (3612, 58835), (4018, 52890), (4214, 50430), (4305, 49364), (4515, 47068), (5043, 42140), (5289, 40180), (5740, 37023), (6020, 35301), (6027, 35260), (6321, 33620), (6724, 31605), (7052, 30135), (8036, 26445), (8405, 25284), (8428, 25215), (8610, 24682), (8815, 24108), (9030, 23534), (10045, 21156), (10086, 21070), (10535, 20172), (10578, 20090), (11767, 18060), (12054, 17630), (12341, 17220), (12642, 16810)]