161812420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{587}}^1$

素因数の和:793

約数の個数: 96

約数和(自身を含む): 426746880

約数和(自身を除く): 264934460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 179, 220, 308, 358, 385, 587, 716, 770, 895, 1174, 1253, 1540, 1790, 1969, 2348, 2506, 2935, 3580, 3938, 4109, 5012, 5870, 6265, 6457, 7876, 8218, 9845, 11740, 12530, 12914, 13783, 16436, 19690, 20545, 25060, 25828, 27566, 32285, 39380, 41090, 45199, 55132, 64570, 68915, 82180, 90398, 105073, 129140, 137830, 180796, 210146, 225995, 275660, 420292, 451990, 525365, 735511, 903980, 1050730, 1155803, 1471022, 2101460, 2311606, 2942044, 3677555, 4623212, 5779015, 7355110, 8090621, 11558030, 14710220, 16181242, 23116060, 32362484, 40453105, 80906210, 161812420]

約数ペア:

[(1, 161812420), (2, 80906210), (4, 40453105), (5, 32362484), (7, 23116060), (10, 16181242), (11, 14710220), (14, 11558030), (20, 8090621), (22, 7355110), (28, 5779015), (35, 4623212), (44, 3677555), (55, 2942044), (70, 2311606), (77, 2101460), (110, 1471022), (140, 1155803), (154, 1050730), (179, 903980), (220, 735511), (308, 525365), (358, 451990), (385, 420292), (587, 275660), (716, 225995), (770, 210146), (895, 180796), (1174, 137830), (1253, 129140), (1540, 105073), (1790, 90398), (1969, 82180), (2348, 68915), (2506, 64570), (2935, 55132), (3580, 45199), (3938, 41090), (4109, 39380), (5012, 32285), (5870, 27566), (6265, 25828), (6457, 25060), (7876, 20545), (8218, 19690), (9845, 16436), (11740, 13783), (12530, 12914)]