20474580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^2$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 69471360

約数和(自身を除く): 48996780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 41, 42, 58, 60, 70, 82, 84, 87, 105, 116, 123, 140, 145, 164, 174, 203, 205, 210, 246, 287, 290, 348, 406, 410, 420, 435, 492, 574, 580, 609, 615, 812, 820, 861, 870, 1015, 1148, 1189, 1218, 1230, 1435, 1681, 1722, 1740, 2030, 2378, 2436, 2460, 2870, 3045, 3362, 3444, 3567, 4060, 4305, 4756, 5043, 5740, 5945, 6090, 6724, 7134, 8323, 8405, 8610, 10086, 11767, 11890, 12180, 14268, 16646, 16810, 17220, 17835, 20172, 23534, 23780, 24969, 25215, 33292, 33620, 35301, 35670, 41615, 47068, 48749, 49938, 50430, 58835, 70602, 71340, 83230, 97498, 99876, 100860, 117670, 124845, 141204, 146247, 166460, 176505, 194996, 235340, 243745, 249690, 292494, 341243, 353010, 487490, 499380, 584988, 682486, 706020, 731235, 974980, 1023729, 1364972, 1462470, 1706215, 2047458, 2924940, 3412430, 4094916, 5118645, 6824860, 10237290, 20474580]

約数ペア:

[(1, 20474580), (2, 10237290), (3, 6824860), (4, 5118645), (5, 4094916), (6, 3412430), (7, 2924940), (10, 2047458), (12, 1706215), (14, 1462470), (15, 1364972), (20, 1023729), (21, 974980), (28, 731235), (29, 706020), (30, 682486), (35, 584988), (41, 499380), (42, 487490), (58, 353010), (60, 341243), (70, 292494), (82, 249690), (84, 243745), (87, 235340), (105, 194996), (116, 176505), (123, 166460), (140, 146247), (145, 141204), (164, 124845), (174, 117670), (203, 100860), (205, 99876), (210, 97498), (246, 83230), (287, 71340), (290, 70602), (348, 58835), (406, 50430), (410, 49938), (420, 48749), (435, 47068), (492, 41615), (574, 35670), (580, 35301), (609, 33620), (615, 33292), (812, 25215), (820, 24969), (861, 23780), (870, 23534), (1015, 20172), (1148, 17835), (1189, 17220), (1218, 16810), (1230, 16646), (1435, 14268), (1681, 12180), (1722, 11890), (1740, 11767), (2030, 10086), (2378, 8610), (2436, 8405), (2460, 8323), (2870, 7134), (3045, 6724), (3362, 6090), (3444, 5945), (3567, 5740), (4060, 5043), (4305, 4756)]