13163375

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 32

約数和(自身を含む): 17571840

約数和(自身を除く): 4408465

約数列:

[1, 5, 25, 31, 43, 79, 125, 155, 215, 395, 775, 1075, 1333, 1975, 2449, 3397, 3875, 5375, 6665, 9875, 12245, 16985, 33325, 61225, 84925, 105307, 166625, 306125, 424625, 526535, 2632675, 13163375]

約数ペア:

[(1, 13163375), (5, 2632675), (25, 526535), (31, 424625), (43, 306125), (79, 166625), (125, 105307), (155, 84925), (215, 61225), (395, 33325), (775, 16985), (1075, 12245), (1333, 9875), (1975, 6665), (2449, 5375), (3397, 3875)]