1138751560

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{217319}}^1$

素因数の和:217461

約数の個数: 32

約数和(自身を含む): 2581761600

約数和(自身を除く): 1443010040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 217319, 434638, 869276, 1086595, 1738552, 2173190, 4346380, 8692760, 28468789, 56937578, 113875156, 142343945, 227750312, 284687890, 569375780, 1138751560]

約数ペア:

[(1, 1138751560), (2, 569375780), (4, 284687890), (5, 227750312), (8, 142343945), (10, 113875156), (20, 56937578), (40, 28468789), (131, 8692760), (262, 4346380), (524, 2173190), (655, 1738552), (1048, 1086595), (1310, 869276), (2620, 434638), (5240, 217319)]