405272140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{2447}}^1$

素因数の和:2496

約数の個数: 108

約数和(自身を含む): 1072473696

約数和(自身を除く): 667201556

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 169, 182, 196, 245, 260, 338, 364, 455, 490, 637, 676, 845, 910, 980, 1183, 1274, 1690, 1820, 2366, 2447, 2548, 3185, 3380, 4732, 4894, 5915, 6370, 8281, 9788, 11830, 12235, 12740, 16562, 17129, 23660, 24470, 31811, 33124, 34258, 41405, 48940, 63622, 68516, 82810, 85645, 119903, 127244, 159055, 165620, 171290, 222677, 239806, 318110, 342580, 413543, 445354, 479612, 599515, 636220, 827086, 890708, 1113385, 1199030, 1558739, 1654172, 2067715, 2226770, 2398060, 2894801, 3117478, 4135430, 4453540, 5789602, 6234956, 7793695, 8270860, 11579204, 14474005, 15587390, 20263607, 28948010, 31174780, 40527214, 57896020, 81054428, 101318035, 202636070, 405272140]

約数ペア:

[(1, 405272140), (2, 202636070), (4, 101318035), (5, 81054428), (7, 57896020), (10, 40527214), (13, 31174780), (14, 28948010), (20, 20263607), (26, 15587390), (28, 14474005), (35, 11579204), (49, 8270860), (52, 7793695), (65, 6234956), (70, 5789602), (91, 4453540), (98, 4135430), (130, 3117478), (140, 2894801), (169, 2398060), (182, 2226770), (196, 2067715), (245, 1654172), (260, 1558739), (338, 1199030), (364, 1113385), (455, 890708), (490, 827086), (637, 636220), (676, 599515), (845, 479612), (910, 445354), (980, 413543), (1183, 342580), (1274, 318110), (1690, 239806), (1820, 222677), (2366, 171290), (2447, 165620), (2548, 159055), (3185, 127244), (3380, 119903), (4732, 85645), (4894, 82810), (5915, 68516), (6370, 63622), (8281, 48940), (9788, 41405), (11830, 34258), (12235, 33124), (12740, 31811), (16562, 24470), (17129, 23660)]