1640778860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1\times {\mathrm{419}}^1$

素因数の和:855

約数の個数: 96

約数和(自身を含む): 4006679040

約数和(自身を除く): 2365900180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 332, 337, 415, 419, 581, 674, 830, 838, 1162, 1348, 1660, 1676, 1685, 2095, 2324, 2359, 2905, 2933, 3370, 4190, 4718, 5810, 5866, 6740, 8380, 9436, 11620, 11732, 11795, 14665, 23590, 27971, 29330, 34777, 47180, 55942, 58660, 69554, 111884, 139108, 139855, 141203, 173885, 195797, 243439, 279710, 282406, 347770, 391594, 486878, 559420, 564812, 695540, 706015, 783188, 973756, 978985, 988421, 1217195, 1412030, 1957970, 1976842, 2434390, 2824060, 3915940, 3953684, 4868780, 4942105, 9884210, 11719849, 19768420, 23439698, 46879396, 58599245, 82038943, 117198490, 164077886, 234396980, 328155772, 410194715, 820389430, 1640778860]

約数ペア:

[(1, 1640778860), (2, 820389430), (4, 410194715), (5, 328155772), (7, 234396980), (10, 164077886), (14, 117198490), (20, 82038943), (28, 58599245), (35, 46879396), (70, 23439698), (83, 19768420), (140, 11719849), (166, 9884210), (332, 4942105), (337, 4868780), (415, 3953684), (419, 3915940), (581, 2824060), (674, 2434390), (830, 1976842), (838, 1957970), (1162, 1412030), (1348, 1217195), (1660, 988421), (1676, 978985), (1685, 973756), (2095, 783188), (2324, 706015), (2359, 695540), (2905, 564812), (2933, 559420), (3370, 486878), (4190, 391594), (4718, 347770), (5810, 282406), (5866, 279710), (6740, 243439), (8380, 195797), (9436, 173885), (11620, 141203), (11732, 139855), (11795, 139108), (14665, 111884), (23590, 69554), (27971, 58660), (29330, 55942), (34777, 47180)]