85894180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 192681720

約数和(自身を除く): 106787540

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 109, 124, 155, 164, 205, 218, 310, 410, 436, 545, 620, 820, 961, 1090, 1271, 1922, 2180, 2542, 3379, 3844, 4469, 4805, 5084, 6355, 6758, 8938, 9610, 12710, 13516, 16895, 17876, 19220, 22345, 25420, 33790, 39401, 44690, 67580, 78802, 89380, 104749, 138539, 157604, 197005, 209498, 277078, 394010, 418996, 523745, 554156, 692695, 788020, 1047490, 1385390, 2094980, 2770780, 4294709, 8589418, 17178836, 21473545, 42947090, 85894180]

約数ペア:

[(1, 85894180), (2, 42947090), (4, 21473545), (5, 17178836), (10, 8589418), (20, 4294709), (31, 2770780), (41, 2094980), (62, 1385390), (82, 1047490), (109, 788020), (124, 692695), (155, 554156), (164, 523745), (205, 418996), (218, 394010), (310, 277078), (410, 209498), (436, 197005), (545, 157604), (620, 138539), (820, 104749), (961, 89380), (1090, 78802), (1271, 67580), (1922, 44690), (2180, 39401), (2542, 33790), (3379, 25420), (3844, 22345), (4469, 19220), (4805, 17876), (5084, 16895), (6355, 13516), (6758, 12710), (8938, 9610)]