258690680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1697}}^1$

素因数の和:1848

約数の個数: 64

約数和(自身を含む): 603944640

約数和(自身を除く): 345253960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 103, 148, 185, 206, 296, 370, 412, 515, 740, 824, 1030, 1480, 1697, 2060, 3394, 3811, 4120, 6788, 7622, 8485, 13576, 15244, 16970, 19055, 30488, 33940, 38110, 62789, 67880, 76220, 125578, 152440, 174791, 251156, 313945, 349582, 502312, 627890, 699164, 873955, 1255780, 1398328, 1747910, 2511560, 3495820, 6467267, 6991640, 12934534, 25869068, 32336335, 51738136, 64672670, 129345340, 258690680]

約数ペア:

[(1, 258690680), (2, 129345340), (4, 64672670), (5, 51738136), (8, 32336335), (10, 25869068), (20, 12934534), (37, 6991640), (40, 6467267), (74, 3495820), (103, 2511560), (148, 1747910), (185, 1398328), (206, 1255780), (296, 873955), (370, 699164), (412, 627890), (515, 502312), (740, 349582), (824, 313945), (1030, 251156), (1480, 174791), (1697, 152440), (2060, 125578), (3394, 76220), (3811, 67880), (4120, 62789), (6788, 38110), (7622, 33940), (8485, 30488), (13576, 19055), (15244, 16970)]