86981960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3559}}^1$

素因数の和:3630

約数の個数: 64

約数和(自身を含む): 215308800

約数和(自身を除く): 128326840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1222, 1880, 2444, 3055, 3559, 4888, 6110, 7118, 12220, 14236, 17795, 24440, 28472, 35590, 46267, 71180, 92534, 142360, 167273, 185068, 231335, 334546, 370136, 462670, 669092, 836365, 925340, 1338184, 1672730, 1850680, 2174549, 3345460, 4349098, 6690920, 8698196, 10872745, 17396392, 21745490, 43490980, 86981960]

約数ペア:

[(1, 86981960), (2, 43490980), (4, 21745490), (5, 17396392), (8, 10872745), (10, 8698196), (13, 6690920), (20, 4349098), (26, 3345460), (40, 2174549), (47, 1850680), (52, 1672730), (65, 1338184), (94, 925340), (104, 836365), (130, 669092), (188, 462670), (235, 370136), (260, 334546), (376, 231335), (470, 185068), (520, 167273), (611, 142360), (940, 92534), (1222, 71180), (1880, 46267), (2444, 35590), (3055, 28472), (3559, 24440), (4888, 17795), (6110, 14236), (7118, 12220)]