651387220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1861}}^1$

素因数の和:1961

約数の個数: 96

約数和(自身を含む): 1569085056

約数和(自身を除く): 917697836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 43, 44, 55, 74, 86, 110, 148, 172, 185, 215, 220, 370, 407, 430, 473, 740, 814, 860, 946, 1591, 1628, 1861, 1892, 2035, 2365, 3182, 3722, 4070, 4730, 6364, 7444, 7955, 8140, 9305, 9460, 15910, 17501, 18610, 20471, 31820, 35002, 37220, 40942, 68857, 70004, 80023, 81884, 87505, 102355, 137714, 160046, 175010, 204710, 275428, 320092, 344285, 350020, 400115, 409420, 688570, 757427, 800230, 880253, 1377140, 1514854, 1600460, 1760506, 2960851, 3029708, 3521012, 3787135, 4401265, 5921702, 7574270, 8802530, 11843404, 14804255, 15148540, 17605060, 29608510, 32569361, 59217020, 65138722, 130277444, 162846805, 325693610, 651387220]

約数ペア:

[(1, 651387220), (2, 325693610), (4, 162846805), (5, 130277444), (10, 65138722), (11, 59217020), (20, 32569361), (22, 29608510), (37, 17605060), (43, 15148540), (44, 14804255), (55, 11843404), (74, 8802530), (86, 7574270), (110, 5921702), (148, 4401265), (172, 3787135), (185, 3521012), (215, 3029708), (220, 2960851), (370, 1760506), (407, 1600460), (430, 1514854), (473, 1377140), (740, 880253), (814, 800230), (860, 757427), (946, 688570), (1591, 409420), (1628, 400115), (1861, 350020), (1892, 344285), (2035, 320092), (2365, 275428), (3182, 204710), (3722, 175010), (4070, 160046), (4730, 137714), (6364, 102355), (7444, 87505), (7955, 81884), (8140, 80023), (9305, 70004), (9460, 68857), (15910, 40942), (17501, 37220), (18610, 35002), (20471, 31820)]