78887560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{563}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 185172480

約数和(自身を除く): 106284920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 113, 124, 155, 226, 248, 310, 452, 563, 565, 620, 904, 1126, 1130, 1240, 2252, 2260, 2815, 3503, 4504, 4520, 5630, 7006, 11260, 14012, 17453, 17515, 22520, 28024, 34906, 35030, 63619, 69812, 70060, 87265, 127238, 139624, 140120, 174530, 254476, 318095, 349060, 508952, 636190, 698120, 1272380, 1972189, 2544760, 3944378, 7888756, 9860945, 15777512, 19721890, 39443780, 78887560]

約数ペア:

[(1, 78887560), (2, 39443780), (4, 19721890), (5, 15777512), (8, 9860945), (10, 7888756), (20, 3944378), (31, 2544760), (40, 1972189), (62, 1272380), (113, 698120), (124, 636190), (155, 508952), (226, 349060), (248, 318095), (310, 254476), (452, 174530), (563, 140120), (565, 139624), (620, 127238), (904, 87265), (1126, 70060), (1130, 69812), (1240, 63619), (2252, 35030), (2260, 34906), (2815, 28024), (3503, 22520), (4504, 17515), (4520, 17453), (5630, 14012), (7006, 11260)]