42509990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{569}}^1$

素因数の和:848

約数の個数: 32

約数和(自身を含む): 79453440

約数和(自身を除く): 36943450

約数列:

[1, 2, 5, 10, 31, 62, 155, 241, 310, 482, 569, 1138, 1205, 2410, 2845, 5690, 7471, 14942, 17639, 35278, 37355, 74710, 88195, 137129, 176390, 274258, 685645, 1371290, 4250999, 8501998, 21254995, 42509990]

約数ペア:

[(1, 42509990), (2, 21254995), (5, 8501998), (10, 4250999), (31, 1371290), (62, 685645), (155, 274258), (241, 176390), (310, 137129), (482, 88195), (569, 74710), (1138, 37355), (1205, 35278), (2410, 17639), (2845, 14942), (5690, 7471)]