72420170

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9907}}^1$

素因数の和:9974

約数の個数: 32

約数和(自身を含む): 141248448

約数和(自身を除く): 68828278

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 3655, 7310, 9907, 19814, 49535, 99070, 168419, 336838, 426001, 842095, 852002, 1684190, 2130005, 4260010, 7242017, 14484034, 36210085, 72420170]

約数ペア:

[(1, 72420170), (2, 36210085), (5, 14484034), (10, 7242017), (17, 4260010), (34, 2130005), (43, 1684190), (85, 852002), (86, 842095), (170, 426001), (215, 336838), (430, 168419), (731, 99070), (1462, 49535), (3655, 19814), (7310, 9907)]