80576840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{593}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 188179200

約数和(自身を除く): 107602360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 395, 430, 593, 632, 790, 860, 1186, 1580, 1720, 2372, 2965, 3160, 3397, 4744, 5930, 6794, 11860, 13588, 16985, 23720, 25499, 27176, 33970, 46847, 50998, 67940, 93694, 101996, 127495, 135880, 187388, 203992, 234235, 254990, 374776, 468470, 509980, 936940, 1019960, 1873880, 2014421, 4028842, 8057684, 10072105, 16115368, 20144210, 40288420, 80576840]

約数ペア:

[(1, 80576840), (2, 40288420), (4, 20144210), (5, 16115368), (8, 10072105), (10, 8057684), (20, 4028842), (40, 2014421), (43, 1873880), (79, 1019960), (86, 936940), (158, 509980), (172, 468470), (215, 374776), (316, 254990), (344, 234235), (395, 203992), (430, 187388), (593, 135880), (632, 127495), (790, 101996), (860, 93694), (1186, 67940), (1580, 50998), (1720, 46847), (2372, 33970), (2965, 27176), (3160, 25499), (3397, 23720), (4744, 16985), (5930, 13588), (6794, 11860)]