206849980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 470679552

約数和(自身を除く): 263829572

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 71, 74, 124, 127, 142, 148, 155, 185, 254, 284, 310, 355, 370, 508, 620, 635, 710, 740, 1147, 1270, 1420, 2201, 2294, 2540, 2627, 3937, 4402, 4588, 4699, 5254, 5735, 7874, 8804, 9017, 9398, 10508, 11005, 11470, 13135, 15748, 18034, 18796, 19685, 22010, 22940, 23495, 26270, 36068, 39370, 44020, 45085, 46990, 52540, 78740, 81437, 90170, 93980, 145669, 162874, 180340, 279527, 291338, 325748, 333629, 407185, 559054, 582676, 667258, 728345, 814370, 1118108, 1334516, 1397635, 1456690, 1628740, 1668145, 2795270, 2913380, 3336290, 5590540, 6672580, 10342499, 20684998, 41369996, 51712495, 103424990, 206849980]

約数ペア:

[(1, 206849980), (2, 103424990), (4, 51712495), (5, 41369996), (10, 20684998), (20, 10342499), (31, 6672580), (37, 5590540), (62, 3336290), (71, 2913380), (74, 2795270), (124, 1668145), (127, 1628740), (142, 1456690), (148, 1397635), (155, 1334516), (185, 1118108), (254, 814370), (284, 728345), (310, 667258), (355, 582676), (370, 559054), (508, 407185), (620, 333629), (635, 325748), (710, 291338), (740, 279527), (1147, 180340), (1270, 162874), (1420, 145669), (2201, 93980), (2294, 90170), (2540, 81437), (2627, 78740), (3937, 52540), (4402, 46990), (4588, 45085), (4699, 44020), (5254, 39370), (5735, 36068), (7874, 26270), (8804, 23495), (9017, 22940), (9398, 22010), (10508, 19685), (11005, 18796), (11470, 18034), (13135, 15748)]