159904100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:1005

約数の個数: 72

約数和(自身を含む): 364122528

約数和(自身を除く): 204218428

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 43, 50, 82, 86, 100, 164, 172, 205, 215, 410, 430, 820, 860, 907, 1025, 1075, 1763, 1814, 2050, 2150, 3526, 3628, 4100, 4300, 4535, 7052, 8815, 9070, 17630, 18140, 22675, 35260, 37187, 39001, 44075, 45350, 74374, 78002, 88150, 90700, 148748, 156004, 176300, 185935, 195005, 371870, 390010, 743740, 780020, 929675, 975025, 1599041, 1859350, 1950050, 3198082, 3718700, 3900100, 6396164, 7995205, 15990410, 31980820, 39976025, 79952050, 159904100]

約数ペア:

[(1, 159904100), (2, 79952050), (4, 39976025), (5, 31980820), (10, 15990410), (20, 7995205), (25, 6396164), (41, 3900100), (43, 3718700), (50, 3198082), (82, 1950050), (86, 1859350), (100, 1599041), (164, 975025), (172, 929675), (205, 780020), (215, 743740), (410, 390010), (430, 371870), (820, 195005), (860, 185935), (907, 176300), (1025, 156004), (1075, 148748), (1763, 90700), (1814, 88150), (2050, 78002), (2150, 74374), (3526, 45350), (3628, 44075), (4100, 39001), (4300, 37187), (4535, 35260), (7052, 22675), (8815, 18140), (9070, 17630)]