140281880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 323481600

約数和(自身を除く): 183199720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 103, 158, 206, 316, 395, 412, 431, 515, 632, 790, 824, 862, 1030, 1580, 1724, 2060, 2155, 3160, 3448, 4120, 4310, 8137, 8620, 16274, 17240, 32548, 34049, 40685, 44393, 65096, 68098, 81370, 88786, 136196, 162740, 170245, 177572, 221965, 272392, 325480, 340490, 355144, 443930, 680980, 887860, 1361960, 1775720, 3507047, 7014094, 14028188, 17535235, 28056376, 35070470, 70140940, 140281880]

約数ペア:

[(1, 140281880), (2, 70140940), (4, 35070470), (5, 28056376), (8, 17535235), (10, 14028188), (20, 7014094), (40, 3507047), (79, 1775720), (103, 1361960), (158, 887860), (206, 680980), (316, 443930), (395, 355144), (412, 340490), (431, 325480), (515, 272392), (632, 221965), (790, 177572), (824, 170245), (862, 162740), (1030, 136196), (1580, 88786), (1724, 81370), (2060, 68098), (2155, 65096), (3160, 44393), (3448, 40685), (4120, 34049), (4310, 32548), (8137, 17240), (8620, 16274)]