81999075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 145678176

約数和(自身を除く): 63679101

約数列:

[1, 3, 5, 15, 17, 25, 51, 73, 75, 85, 219, 255, 365, 425, 881, 1095, 1241, 1275, 1825, 2643, 3723, 4405, 5475, 6205, 13215, 14977, 18615, 22025, 31025, 44931, 64313, 66075, 74885, 93075, 192939, 224655, 321565, 374425, 964695, 1093321, 1123275, 1607825, 3279963, 4823475, 5466605, 16399815, 27333025, 81999075]

約数ペア:

[(1, 81999075), (3, 27333025), (5, 16399815), (15, 5466605), (17, 4823475), (25, 3279963), (51, 1607825), (73, 1123275), (75, 1093321), (85, 964695), (219, 374425), (255, 321565), (365, 224655), (425, 192939), (881, 93075), (1095, 74885), (1241, 66075), (1275, 64313), (1825, 44931), (2643, 31025), (3723, 22025), (4405, 18615), (5475, 14977), (6205, 13215)]