289704880

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 690402240

約数和(自身を除く): 400697360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 113, 146, 226, 292, 365, 439, 452, 565, 584, 730, 878, 904, 1130, 1168, 1460, 1756, 1808, 2195, 2260, 2920, 3512, 4390, 4520, 5840, 7024, 8249, 8780, 9040, 16498, 17560, 32047, 32996, 35120, 41245, 49607, 64094, 65992, 82490, 99214, 128188, 131984, 160235, 164980, 198428, 248035, 256376, 320470, 329960, 396856, 496070, 512752, 640940, 659920, 793712, 992140, 1281880, 1984280, 2563760, 3621311, 3968560, 7242622, 14485244, 18106555, 28970488, 36213110, 57940976, 72426220, 144852440, 289704880]

約数ペア:

[(1, 289704880), (2, 144852440), (4, 72426220), (5, 57940976), (8, 36213110), (10, 28970488), (16, 18106555), (20, 14485244), (40, 7242622), (73, 3968560), (80, 3621311), (113, 2563760), (146, 1984280), (226, 1281880), (292, 992140), (365, 793712), (439, 659920), (452, 640940), (565, 512752), (584, 496070), (730, 396856), (878, 329960), (904, 320470), (1130, 256376), (1168, 248035), (1460, 198428), (1756, 164980), (1808, 160235), (2195, 131984), (2260, 128188), (2920, 99214), (3512, 82490), (4390, 65992), (4520, 64094), (5840, 49607), (7024, 41245), (8249, 35120), (8780, 32996), (9040, 32047), (16498, 17560)]