72845220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{691}}^1$

素因数の和:961

約数の個数: 96

約数和(自身を含む): 234372096

約数和(自身を除く): 161526876

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 251, 420, 502, 691, 753, 1004, 1255, 1382, 1506, 1757, 2073, 2510, 2764, 3012, 3455, 3514, 3765, 4146, 4837, 5020, 5271, 6910, 7028, 7530, 8292, 8785, 9674, 10365, 10542, 13820, 14511, 15060, 17570, 19348, 20730, 21084, 24185, 26355, 29022, 35140, 41460, 48370, 52710, 58044, 72555, 96740, 105420, 145110, 173441, 290220, 346882, 520323, 693764, 867205, 1040646, 1214087, 1734410, 2081292, 2428174, 2601615, 3468820, 3642261, 4856348, 5203230, 6070435, 7284522, 10406460, 12140870, 14569044, 18211305, 24281740, 36422610, 72845220]

約数ペア:

[(1, 72845220), (2, 36422610), (3, 24281740), (4, 18211305), (5, 14569044), (6, 12140870), (7, 10406460), (10, 7284522), (12, 6070435), (14, 5203230), (15, 4856348), (20, 3642261), (21, 3468820), (28, 2601615), (30, 2428174), (35, 2081292), (42, 1734410), (60, 1214087), (70, 1040646), (84, 867205), (105, 693764), (140, 520323), (210, 346882), (251, 290220), (420, 173441), (502, 145110), (691, 105420), (753, 96740), (1004, 72555), (1255, 58044), (1382, 52710), (1506, 48370), (1757, 41460), (2073, 35140), (2510, 29022), (2764, 26355), (3012, 24185), (3455, 21084), (3514, 20730), (3765, 19348), (4146, 17570), (4837, 15060), (5020, 14511), (5271, 13820), (6910, 10542), (7028, 10365), (7530, 9674), (8292, 8785)]