81835728

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{419}}^1$

素因数の和:756

約数の個数: 80

約数和(自身を含む): 228943680

約数和(自身を除く): 147107952

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 313, 419, 624, 626, 838, 939, 1252, 1257, 1676, 1878, 2504, 2514, 3352, 3756, 4069, 5008, 5028, 5447, 6704, 7512, 8138, 10056, 10894, 12207, 15024, 16276, 16341, 20112, 21788, 24414, 32552, 32682, 43576, 48828, 65104, 65364, 87152, 97656, 130728, 131147, 195312, 261456, 262294, 393441, 524588, 786882, 1049176, 1573764, 1704911, 2098352, 3147528, 3409822, 5114733, 6295056, 6819644, 10229466, 13639288, 20458932, 27278576, 40917864, 81835728]

約数ペア:

[(1, 81835728), (2, 40917864), (3, 27278576), (4, 20458932), (6, 13639288), (8, 10229466), (12, 6819644), (13, 6295056), (16, 5114733), (24, 3409822), (26, 3147528), (39, 2098352), (48, 1704911), (52, 1573764), (78, 1049176), (104, 786882), (156, 524588), (208, 393441), (312, 262294), (313, 261456), (419, 195312), (624, 131147), (626, 130728), (838, 97656), (939, 87152), (1252, 65364), (1257, 65104), (1676, 48828), (1878, 43576), (2504, 32682), (2514, 32552), (3352, 24414), (3756, 21788), (4069, 20112), (5008, 16341), (5028, 16276), (5447, 15024), (6704, 12207), (7512, 10894), (8138, 10056)]