19680097970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{8291}}^1$

素因数の和:8392

約数の個数: 96

約数和(自身を含む): 41499138240

約数和(自身を除く): 21819040270

約数列:

[1, 2, 5, 10, 13, 19, 26, 31, 38, 62, 65, 95, 130, 155, 190, 247, 310, 403, 494, 589, 806, 961, 1178, 1235, 1922, 2015, 2470, 2945, 4030, 4805, 5890, 7657, 8291, 9610, 12493, 15314, 16582, 18259, 24986, 36518, 38285, 41455, 62465, 76570, 82910, 91295, 107783, 124930, 157529, 182590, 215566, 237367, 257021, 315058, 474734, 514042, 538915, 787645, 1077830, 1186835, 1285105, 1575290, 2047877, 2373670, 2570210, 3341273, 4095754, 4883399, 6682546, 7967651, 9766798, 10239385, 15935302, 16706365, 20478770, 24416995, 33412730, 39838255, 48833990, 63484187, 79676510, 103579463, 126968374, 151385369, 207158926, 302770738, 317420935, 517897315, 634841870, 756926845, 1035794630, 1513853690, 1968009797, 3936019594, 9840048985, 19680097970]

約数ペア:

[(1, 19680097970), (2, 9840048985), (5, 3936019594), (10, 1968009797), (13, 1513853690), (19, 1035794630), (26, 756926845), (31, 634841870), (38, 517897315), (62, 317420935), (65, 302770738), (95, 207158926), (130, 151385369), (155, 126968374), (190, 103579463), (247, 79676510), (310, 63484187), (403, 48833990), (494, 39838255), (589, 33412730), (806, 24416995), (961, 20478770), (1178, 16706365), (1235, 15935302), (1922, 10239385), (2015, 9766798), (2470, 7967651), (2945, 6682546), (4030, 4883399), (4805, 4095754), (5890, 3341273), (7657, 2570210), (8291, 2373670), (9610, 2047877), (12493, 1575290), (15314, 1285105), (16582, 1186835), (18259, 1077830), (24986, 787645), (36518, 538915), (38285, 514042), (41455, 474734), (62465, 315058), (76570, 257021), (82910, 237367), (91295, 215566), (107783, 182590), (124930, 157529)]