90621680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{36541}}^1$

素因数の和:36585

約数の個数: 40

約数和(自身を含む): 217497984

約数和(自身を除く): 126876304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 36541, 73082, 146164, 182705, 292328, 365410, 584656, 730820, 1132771, 1461640, 2265542, 2923280, 4531084, 5663855, 9062168, 11327710, 18124336, 22655420, 45310840, 90621680]

約数ペア:

[(1, 90621680), (2, 45310840), (4, 22655420), (5, 18124336), (8, 11327710), (10, 9062168), (16, 5663855), (20, 4531084), (31, 2923280), (40, 2265542), (62, 1461640), (80, 1132771), (124, 730820), (155, 584656), (248, 365410), (310, 292328), (496, 182705), (620, 146164), (1240, 73082), (2480, 36541)]