8136904375

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:386

約数の個数: 80

約数和(自身を含む): 11156428800

約数和(自身を除く): 3019524425

約数列:

[1, 5, 19, 25, 47, 61, 95, 125, 235, 239, 305, 475, 625, 893, 1159, 1175, 1195, 1525, 2375, 2867, 4465, 4541, 5795, 5875, 5975, 7625, 11233, 11875, 14335, 14579, 22325, 22705, 28975, 29375, 29875, 38125, 54473, 56165, 71675, 72895, 111625, 113525, 144875, 149375, 213427, 272365, 277001, 280825, 358375, 364475, 558125, 567625, 685213, 724375, 1067135, 1361825, 1385005, 1404125, 1791875, 1822375, 2838125, 3426065, 5335675, 6809125, 6925025, 7020625, 9111875, 13019047, 17130325, 26678375, 34045625, 34625125, 65095235, 85651625, 133391875, 173125625, 325476175, 428258125, 1627380875, 8136904375]

約数ペア:

[(1, 8136904375), (5, 1627380875), (19, 428258125), (25, 325476175), (47, 173125625), (61, 133391875), (95, 85651625), (125, 65095235), (235, 34625125), (239, 34045625), (305, 26678375), (475, 17130325), (625, 13019047), (893, 9111875), (1159, 7020625), (1175, 6925025), (1195, 6809125), (1525, 5335675), (2375, 3426065), (2867, 2838125), (4465, 1822375), (4541, 1791875), (5795, 1404125), (5875, 1385005), (5975, 1361825), (7625, 1067135), (11233, 724375), (11875, 685213), (14335, 567625), (14579, 558125), (22325, 364475), (22705, 358375), (28975, 280825), (29375, 277001), (29875, 272365), (38125, 213427), (54473, 149375), (56165, 144875), (71675, 113525), (72895, 111625)]