78980560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31847}}^1$

素因数の和:31891

約数の個数: 40

約数和(自身を含む): 189559296

約数和(自身を除く): 110578736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 31847, 63694, 127388, 159235, 254776, 318470, 509552, 636940, 987257, 1273880, 1974514, 2547760, 3949028, 4936285, 7898056, 9872570, 15796112, 19745140, 39490280, 78980560]

約数ペア:

[(1, 78980560), (2, 39490280), (4, 19745140), (5, 15796112), (8, 9872570), (10, 7898056), (16, 4936285), (20, 3949028), (31, 2547760), (40, 1974514), (62, 1273880), (80, 987257), (124, 636940), (155, 509552), (248, 318470), (310, 254776), (496, 159235), (620, 127388), (1240, 63694), (2480, 31847)]