81333420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{983}}^1$

素因数の和:1199

約数の個数: 96

約数和(自身を含む): 261854208

約数和(自身を除く): 180520788

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, 197, 210, 394, 420, 591, 788, 983, 985, 1182, 1379, 1966, 1970, 2364, 2758, 2949, 2955, 3932, 3940, 4137, 4915, 5516, 5898, 5910, 6881, 6895, 8274, 9830, 11796, 11820, 13762, 13790, 14745, 16548, 19660, 20643, 20685, 27524, 27580, 29490, 34405, 41286, 41370, 58980, 68810, 82572, 82740, 103215, 137620, 193651, 206430, 387302, 412860, 580953, 774604, 968255, 1161906, 1355557, 1936510, 2323812, 2711114, 2904765, 3873020, 4066671, 5422228, 5809530, 6777785, 8133342, 11619060, 13555570, 16266684, 20333355, 27111140, 40666710, 81333420]

約数ペア:

[(1, 81333420), (2, 40666710), (3, 27111140), (4, 20333355), (5, 16266684), (6, 13555570), (7, 11619060), (10, 8133342), (12, 6777785), (14, 5809530), (15, 5422228), (20, 4066671), (21, 3873020), (28, 2904765), (30, 2711114), (35, 2323812), (42, 1936510), (60, 1355557), (70, 1161906), (84, 968255), (105, 774604), (140, 580953), (197, 412860), (210, 387302), (394, 206430), (420, 193651), (591, 137620), (788, 103215), (983, 82740), (985, 82572), (1182, 68810), (1379, 58980), (1966, 41370), (1970, 41286), (2364, 34405), (2758, 29490), (2949, 27580), (2955, 27524), (3932, 20685), (3940, 20643), (4137, 19660), (4915, 16548), (5516, 14745), (5898, 13790), (5910, 13762), (6881, 11820), (6895, 11796), (8274, 9830)]