812713020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{491}}^1\times {\mathrm{563}}^1$

素因数の和:1080

約数の個数: 144

約数和(自身を含む): 2657225088

約数和(自身を除く): 1844512068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 491, 563, 588, 735, 980, 982, 1126, 1470, 1473, 1689, 1964, 2252, 2455, 2815, 2940, 2946, 3378, 3437, 3941, 4910, 5630, 5892, 6756, 6874, 7365, 7882, 8445, 9820, 10311, 11260, 11823, 13748, 14730, 15764, 16890, 17185, 19705, 20622, 23646, 24059, 27587, 29460, 33780, 34370, 39410, 41244, 47292, 48118, 51555, 55174, 59115, 68740, 72177, 78820, 82761, 96236, 103110, 110348, 118230, 120295, 137935, 144354, 165522, 206220, 236460, 240590, 275870, 276433, 288708, 331044, 360885, 413805, 481180, 551740, 552866, 721770, 827610, 829299, 1105732, 1382165, 1443540, 1655220, 1658598, 1935031, 2764330, 3317196, 3870062, 4146495, 5528660, 5805093, 7740124, 8292990, 9675155, 11610186, 13545217, 16585980, 19350310, 23220372, 27090434, 29025465, 38700620, 40635651, 54180868, 58050930, 67726085, 81271302, 116101860, 135452170, 162542604, 203178255, 270904340, 406356510, 812713020]

約数ペア:

[(1, 812713020), (2, 406356510), (3, 270904340), (4, 203178255), (5, 162542604), (6, 135452170), (7, 116101860), (10, 81271302), (12, 67726085), (14, 58050930), (15, 54180868), (20, 40635651), (21, 38700620), (28, 29025465), (30, 27090434), (35, 23220372), (42, 19350310), (49, 16585980), (60, 13545217), (70, 11610186), (84, 9675155), (98, 8292990), (105, 7740124), (140, 5805093), (147, 5528660), (196, 4146495), (210, 3870062), (245, 3317196), (294, 2764330), (420, 1935031), (490, 1658598), (491, 1655220), (563, 1443540), (588, 1382165), (735, 1105732), (980, 829299), (982, 827610), (1126, 721770), (1470, 552866), (1473, 551740), (1689, 481180), (1964, 413805), (2252, 360885), (2455, 331044), (2815, 288708), (2940, 276433), (2946, 275870), (3378, 240590), (3437, 236460), (3941, 206220), (4910, 165522), (5630, 144354), (5892, 137935), (6756, 120295), (6874, 118230), (7365, 110348), (7882, 103110), (8445, 96236), (9820, 82761), (10311, 78820), (11260, 72177), (11823, 68740), (13748, 59115), (14730, 55174), (15764, 51555), (16890, 48118), (17185, 47292), (19705, 41244), (20622, 39410), (23646, 34370), (24059, 33780), (27587, 29460)]