28736890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1373}}^1$

素因数の和:1423

約数の個数: 64

約数和(自身を含む): 66479616

約数和(自身を除く): 37742726

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 65, 70, 91, 115, 130, 161, 182, 230, 299, 322, 455, 598, 805, 910, 1373, 1495, 1610, 2093, 2746, 2990, 4186, 6865, 9611, 10465, 13730, 17849, 19222, 20930, 31579, 35698, 48055, 63158, 89245, 96110, 124943, 157895, 178490, 221053, 249886, 315790, 410527, 442106, 624715, 821054, 1105265, 1249430, 2052635, 2210530, 2873689, 4105270, 5747378, 14368445, 28736890]

約数ペア:

[(1, 28736890), (2, 14368445), (5, 5747378), (7, 4105270), (10, 2873689), (13, 2210530), (14, 2052635), (23, 1249430), (26, 1105265), (35, 821054), (46, 624715), (65, 442106), (70, 410527), (91, 315790), (115, 249886), (130, 221053), (161, 178490), (182, 157895), (230, 124943), (299, 96110), (322, 89245), (455, 63158), (598, 48055), (805, 35698), (910, 31579), (1373, 20930), (1495, 19222), (1610, 17849), (2093, 13730), (2746, 10465), (2990, 9611), (4186, 6865)]