161379215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 213269760

約数和(自身を除く): 51890545

約数列:

[1, 5, 17, 43, 67, 85, 215, 335, 659, 731, 1139, 2881, 3295, 3655, 5695, 11203, 14405, 28337, 44153, 48977, 56015, 141685, 220765, 244885, 481729, 750601, 1898579, 2408645, 3753005, 9492895, 32275843, 161379215]

約数ペア:

[(1, 161379215), (5, 32275843), (17, 9492895), (43, 3753005), (67, 2408645), (85, 1898579), (215, 750601), (335, 481729), (659, 244885), (731, 220765), (1139, 141685), (2881, 56015), (3295, 48977), (3655, 44153), (5695, 28337), (11203, 14405)]