317664880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1087}}^1$

素因数の和:1394

約数の個数: 80

約数和(自身を含む): 798948864

約数和(自身を除く): 481283984

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 281, 520, 562, 1040, 1087, 1124, 1405, 2174, 2248, 2810, 3653, 4348, 4496, 5435, 5620, 7306, 8696, 10870, 11240, 14131, 14612, 17392, 18265, 21740, 22480, 28262, 29224, 36530, 43480, 56524, 58448, 70655, 73060, 86960, 113048, 141310, 146120, 226096, 282620, 292240, 305447, 565240, 610894, 1130480, 1221788, 1527235, 2443576, 3054470, 3970811, 4887152, 6108940, 7941622, 12217880, 15883244, 19854055, 24435760, 31766488, 39708110, 63532976, 79416220, 158832440, 317664880]

約数ペア:

[(1, 317664880), (2, 158832440), (4, 79416220), (5, 63532976), (8, 39708110), (10, 31766488), (13, 24435760), (16, 19854055), (20, 15883244), (26, 12217880), (40, 7941622), (52, 6108940), (65, 4887152), (80, 3970811), (104, 3054470), (130, 2443576), (208, 1527235), (260, 1221788), (281, 1130480), (520, 610894), (562, 565240), (1040, 305447), (1087, 292240), (1124, 282620), (1405, 226096), (2174, 146120), (2248, 141310), (2810, 113048), (3653, 86960), (4348, 73060), (4496, 70655), (5435, 58448), (5620, 56524), (7306, 43480), (8696, 36530), (10870, 29224), (11240, 28262), (14131, 22480), (14612, 21740), (17392, 18265)]