15204140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{487}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 36728832

約数和(自身を除く): 21524692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 487, 892, 974, 1115, 1561, 1948, 2230, 2435, 3122, 3409, 4460, 4870, 6244, 6818, 7805, 9740, 13636, 15610, 17045, 31220, 34090, 68180, 108601, 217202, 434404, 543005, 760207, 1086010, 1520414, 2172020, 3040828, 3801035, 7602070, 15204140]

約数ペア:

[(1, 15204140), (2, 7602070), (4, 3801035), (5, 3040828), (7, 2172020), (10, 1520414), (14, 1086010), (20, 760207), (28, 543005), (35, 434404), (70, 217202), (140, 108601), (223, 68180), (446, 34090), (487, 31220), (892, 17045), (974, 15610), (1115, 13636), (1561, 9740), (1948, 7805), (2230, 6818), (2435, 6244), (3122, 4870), (3409, 4460)]