28542280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 69854400

約数和(自身を除く): 41312120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 419, 520, 524, 655, 838, 1048, 1310, 1676, 1703, 2095, 2620, 3352, 3406, 4190, 5240, 5447, 6812, 8380, 8515, 10894, 13624, 16760, 17030, 21788, 27235, 34060, 43576, 54470, 54889, 68120, 108940, 109778, 217880, 219556, 274445, 439112, 548890, 713557, 1097780, 1427114, 2195560, 2854228, 3567785, 5708456, 7135570, 14271140, 28542280]

約数ペア:

[(1, 28542280), (2, 14271140), (4, 7135570), (5, 5708456), (8, 3567785), (10, 2854228), (13, 2195560), (20, 1427114), (26, 1097780), (40, 713557), (52, 548890), (65, 439112), (104, 274445), (130, 219556), (131, 217880), (260, 109778), (262, 108940), (419, 68120), (520, 54889), (524, 54470), (655, 43576), (838, 34060), (1048, 27235), (1310, 21788), (1676, 17030), (1703, 16760), (2095, 13624), (2620, 10894), (3352, 8515), (3406, 8380), (4190, 6812), (5240, 5447)]