253644170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{62939}}^1$

素因数の和:62990

約数の個数: 32

約数和(自身を含む): 507548160

約数和(自身を除く): 253903990

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 62939, 125878, 314695, 629390, 818207, 1636414, 1951109, 3902218, 4091035, 8182070, 9755545, 19511090, 25364417, 50728834, 126822085, 253644170]

約数ペア:

[(1, 253644170), (2, 126822085), (5, 50728834), (10, 25364417), (13, 19511090), (26, 9755545), (31, 8182070), (62, 4091035), (65, 3902218), (130, 1951109), (155, 1636414), (310, 818207), (403, 629390), (806, 314695), (2015, 125878), (4030, 62939)]