9987668080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{947}}^1\times {\mathrm{10141}}^1$

素因数の和:11114

約数の個数: 80

約数和(自身を含む): 25036460064

約数和(自身を除く): 15048791984

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 947, 1040, 1894, 3788, 4735, 7576, 9470, 10141, 12311, 15152, 18940, 20282, 24622, 37880, 40564, 49244, 50705, 61555, 75760, 81128, 98488, 101410, 123110, 131833, 162256, 196976, 202820, 246220, 263666, 405640, 492440, 527332, 659165, 811280, 984880, 1054664, 1318330, 2109328, 2636660, 5273320, 9603527, 10546640, 19207054, 38414108, 48017635, 76828216, 96035270, 124845851, 153656432, 192070540, 249691702, 384141080, 499383404, 624229255, 768282160, 998766808, 1248458510, 1997533616, 2496917020, 4993834040, 9987668080]

約数ペア:

[(1, 9987668080), (2, 4993834040), (4, 2496917020), (5, 1997533616), (8, 1248458510), (10, 998766808), (13, 768282160), (16, 624229255), (20, 499383404), (26, 384141080), (40, 249691702), (52, 192070540), (65, 153656432), (80, 124845851), (104, 96035270), (130, 76828216), (208, 48017635), (260, 38414108), (520, 19207054), (947, 10546640), (1040, 9603527), (1894, 5273320), (3788, 2636660), (4735, 2109328), (7576, 1318330), (9470, 1054664), (10141, 984880), (12311, 811280), (15152, 659165), (18940, 527332), (20282, 492440), (24622, 405640), (37880, 263666), (40564, 246220), (49244, 202820), (50705, 196976), (61555, 162256), (75760, 131833), (81128, 123110), (98488, 101410)]