680384900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16883}}^1$

素因数の和:16941

約数の個数: 72

約数和(自身を含む): 1641394944

約数和(自身を除く): 961010044

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 4030, 8060, 10075, 16883, 20150, 33766, 40300, 67532, 84415, 168830, 219479, 337660, 422075, 438958, 523373, 844150, 877916, 1046746, 1097395, 1688300, 2093492, 2194790, 2616865, 4389580, 5233730, 5486975, 6803849, 10467460, 10973950, 13084325, 13607698, 21947900, 26168650, 27215396, 34019245, 52337300, 68038490, 136076980, 170096225, 340192450, 680384900]

約数ペア:

[(1, 680384900), (2, 340192450), (4, 170096225), (5, 136076980), (10, 68038490), (13, 52337300), (20, 34019245), (25, 27215396), (26, 26168650), (31, 21947900), (50, 13607698), (52, 13084325), (62, 10973950), (65, 10467460), (100, 6803849), (124, 5486975), (130, 5233730), (155, 4389580), (260, 2616865), (310, 2194790), (325, 2093492), (403, 1688300), (620, 1097395), (650, 1046746), (775, 877916), (806, 844150), (1300, 523373), (1550, 438958), (1612, 422075), (2015, 337660), (3100, 219479), (4030, 168830), (8060, 84415), (10075, 67532), (16883, 40300), (20150, 33766)]