158121640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 364512960

約数和(自身を除く): 206391320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 97, 166, 194, 332, 388, 415, 485, 491, 664, 776, 830, 970, 982, 1660, 1940, 1964, 2455, 3320, 3880, 3928, 4910, 8051, 9820, 16102, 19640, 32204, 40255, 40753, 47627, 64408, 80510, 81506, 95254, 161020, 163012, 190508, 203765, 238135, 322040, 326024, 381016, 407530, 476270, 815060, 952540, 1630120, 1905080, 3953041, 7906082, 15812164, 19765205, 31624328, 39530410, 79060820, 158121640]

約数ペア:

[(1, 158121640), (2, 79060820), (4, 39530410), (5, 31624328), (8, 19765205), (10, 15812164), (20, 7906082), (40, 3953041), (83, 1905080), (97, 1630120), (166, 952540), (194, 815060), (332, 476270), (388, 407530), (415, 381016), (485, 326024), (491, 322040), (664, 238135), (776, 203765), (830, 190508), (970, 163012), (982, 161020), (1660, 95254), (1940, 81506), (1964, 80510), (2455, 64408), (3320, 47627), (3880, 40753), (3928, 40255), (4910, 32204), (8051, 19640), (9820, 16102)]