31490784

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{647}}^1$

素因数の和:689

約数の個数: 108

約数和(自身を含む): 97120296

約数和(自身を除く): 65629512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 169, 208, 234, 288, 312, 338, 416, 468, 507, 624, 647, 676, 936, 1014, 1248, 1294, 1352, 1521, 1872, 1941, 2028, 2588, 2704, 3042, 3744, 3882, 4056, 5176, 5408, 5823, 6084, 7764, 8112, 8411, 10352, 11646, 12168, 15528, 16224, 16822, 20704, 23292, 24336, 25233, 31056, 33644, 46584, 48672, 50466, 62112, 67288, 75699, 93168, 100932, 109343, 134576, 151398, 186336, 201864, 218686, 269152, 302796, 328029, 403728, 437372, 605592, 656058, 807456, 874744, 984087, 1211184, 1312116, 1749488, 1968174, 2422368, 2624232, 3498976, 3936348, 5248464, 7872696, 10496928, 15745392, 31490784]

約数ペア:

[(1, 31490784), (2, 15745392), (3, 10496928), (4, 7872696), (6, 5248464), (8, 3936348), (9, 3498976), (12, 2624232), (13, 2422368), (16, 1968174), (18, 1749488), (24, 1312116), (26, 1211184), (32, 984087), (36, 874744), (39, 807456), (48, 656058), (52, 605592), (72, 437372), (78, 403728), (96, 328029), (104, 302796), (117, 269152), (144, 218686), (156, 201864), (169, 186336), (208, 151398), (234, 134576), (288, 109343), (312, 100932), (338, 93168), (416, 75699), (468, 67288), (507, 62112), (624, 50466), (647, 48672), (676, 46584), (936, 33644), (1014, 31056), (1248, 25233), (1294, 24336), (1352, 23292), (1521, 20704), (1872, 16822), (1941, 16224), (2028, 15528), (2588, 12168), (2704, 11646), (3042, 10352), (3744, 8411), (3882, 8112), (4056, 7764), (5176, 6084), (5408, 5823)]