289532560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{116747}}^1$

素因数の和:116791

約数の個数: 40

約数和(自身を含む): 694884096

約数和(自身を除く): 405351536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 116747, 233494, 466988, 583735, 933976, 1167470, 1867952, 2334940, 3619157, 4669880, 7238314, 9339760, 14476628, 18095785, 28953256, 36191570, 57906512, 72383140, 144766280, 289532560]

約数ペア:

[(1, 289532560), (2, 144766280), (4, 72383140), (5, 57906512), (8, 36191570), (10, 28953256), (16, 18095785), (20, 14476628), (31, 9339760), (40, 7238314), (62, 4669880), (80, 3619157), (124, 2334940), (155, 1867952), (248, 1167470), (310, 933976), (496, 583735), (620, 466988), (1240, 233494), (2480, 116747)]