720439902

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1471}}^1$

素因数の和:1535

約数の個数: 144

約数和(自身を含む): 2017087488

約数和(自身を除く): 1296647586

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 23, 26, 39, 42, 46, 63, 69, 78, 91, 117, 126, 138, 161, 169, 182, 207, 234, 273, 299, 322, 338, 414, 483, 507, 546, 598, 819, 897, 966, 1014, 1183, 1449, 1471, 1521, 1638, 1794, 2093, 2366, 2691, 2898, 2942, 3042, 3549, 3887, 4186, 4413, 5382, 6279, 7098, 7774, 8826, 10297, 10647, 11661, 12558, 13239, 18837, 19123, 20594, 21294, 23322, 26478, 27209, 30891, 33833, 34983, 37674, 38246, 54418, 57369, 61782, 67666, 69966, 81627, 92673, 101499, 114738, 133861, 163254, 172107, 185346, 202998, 236831, 244881, 248599, 267722, 304497, 344214, 401583, 439829, 473662, 489762, 497198, 608994, 710493, 745797, 803166, 879658, 1204749, 1319487, 1420986, 1491594, 1740193, 2131479, 2237391, 2409498, 2638974, 3078803, 3480386, 3958461, 4262958, 4474782, 5220579, 5717777, 6157606, 7916922, 9236409, 10441158, 11435554, 15661737, 17153331, 18472818, 27709227, 31323474, 34306662, 40024439, 51459993, 55418454, 80048878, 102919986, 120073317, 240146634, 360219951, 720439902]

約数ペア:

[(1, 720439902), (2, 360219951), (3, 240146634), (6, 120073317), (7, 102919986), (9, 80048878), (13, 55418454), (14, 51459993), (18, 40024439), (21, 34306662), (23, 31323474), (26, 27709227), (39, 18472818), (42, 17153331), (46, 15661737), (63, 11435554), (69, 10441158), (78, 9236409), (91, 7916922), (117, 6157606), (126, 5717777), (138, 5220579), (161, 4474782), (169, 4262958), (182, 3958461), (207, 3480386), (234, 3078803), (273, 2638974), (299, 2409498), (322, 2237391), (338, 2131479), (414, 1740193), (483, 1491594), (507, 1420986), (546, 1319487), (598, 1204749), (819, 879658), (897, 803166), (966, 745797), (1014, 710493), (1183, 608994), (1449, 497198), (1471, 489762), (1521, 473662), (1638, 439829), (1794, 401583), (2093, 344214), (2366, 304497), (2691, 267722), (2898, 248599), (2942, 244881), (3042, 236831), (3549, 202998), (3887, 185346), (4186, 172107), (4413, 163254), (5382, 133861), (6279, 114738), (7098, 101499), (7774, 92673), (8826, 81627), (10297, 69966), (10647, 67666), (11661, 61782), (12558, 57369), (13239, 54418), (18837, 38246), (19123, 37674), (20594, 34983), (21294, 33833), (23322, 30891), (26478, 27209)]