140915720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{18839}}^1$

素因数の和:18878

約数の個数: 64

約数和(自身を含む): 366249600

約数和(自身を除く): 225333880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 18839, 37678, 75356, 94195, 150712, 188390, 207229, 320263, 376780, 414458, 640526, 753560, 828916, 1036145, 1281052, 1601315, 1657832, 2072290, 2562104, 3202630, 3522893, 4144580, 6405260, 7045786, 8289160, 12810520, 14091572, 17614465, 28183144, 35228930, 70457860, 140915720]

約数ペア:

[(1, 140915720), (2, 70457860), (4, 35228930), (5, 28183144), (8, 17614465), (10, 14091572), (11, 12810520), (17, 8289160), (20, 7045786), (22, 6405260), (34, 4144580), (40, 3522893), (44, 3202630), (55, 2562104), (68, 2072290), (85, 1657832), (88, 1601315), (110, 1281052), (136, 1036145), (170, 828916), (187, 753560), (220, 640526), (340, 414458), (374, 376780), (440, 320263), (680, 207229), (748, 188390), (935, 150712), (1496, 94195), (1870, 75356), (3740, 37678), (7480, 18839)]