135678440

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{40867}}^1$

素因数の和:40961

約数の個数: 32

約数和(自身を含む): 308962080

約数和(自身を除く): 173283640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 40867, 81734, 163468, 204335, 326936, 408670, 817340, 1634680, 3391961, 6783922, 13567844, 16959805, 27135688, 33919610, 67839220, 135678440]

約数ペア:

[(1, 135678440), (2, 67839220), (4, 33919610), (5, 27135688), (8, 16959805), (10, 13567844), (20, 6783922), (40, 3391961), (83, 1634680), (166, 817340), (332, 408670), (415, 326936), (664, 204335), (830, 163468), (1660, 81734), (3320, 40867)]