681200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:162

約数の個数: 60

約数和(自身を含む): 1775928

約数和(自身を除く): 1094728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 131, 200, 208, 260, 262, 325, 400, 520, 524, 650, 655, 1040, 1048, 1300, 1310, 1703, 2096, 2600, 2620, 3275, 3406, 5200, 5240, 6550, 6812, 8515, 10480, 13100, 13624, 17030, 26200, 27248, 34060, 42575, 52400, 68120, 85150, 136240, 170300, 340600, 681200]

約数ペア:

[(1, 681200), (2, 340600), (4, 170300), (5, 136240), (8, 85150), (10, 68120), (13, 52400), (16, 42575), (20, 34060), (25, 27248), (26, 26200), (40, 17030), (50, 13624), (52, 13100), (65, 10480), (80, 8515), (100, 6812), (104, 6550), (130, 5240), (131, 5200), (200, 3406), (208, 3275), (260, 2620), (262, 2600), (325, 2096), (400, 1703), (520, 1310), (524, 1300), (650, 1048), (655, 1040)]