137639560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1861}}^1$

素因数の和:1958

約数の個数: 48

約数和(自身を含む): 317228940

約数和(自身を除く): 179589380

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1849, 1861, 3698, 3722, 7396, 7444, 9245, 9305, 14792, 14888, 18490, 18610, 36980, 37220, 73960, 74440, 80023, 160046, 320092, 400115, 640184, 800230, 1600460, 3200920, 3440989, 6881978, 13763956, 17204945, 27527912, 34409890, 68819780, 137639560]

約数ペア:

[(1, 137639560), (2, 68819780), (4, 34409890), (5, 27527912), (8, 17204945), (10, 13763956), (20, 6881978), (40, 3440989), (43, 3200920), (86, 1600460), (172, 800230), (215, 640184), (344, 400115), (430, 320092), (860, 160046), (1720, 80023), (1849, 74440), (1861, 73960), (3698, 37220), (3722, 36980), (7396, 18610), (7444, 18490), (9245, 14888), (9305, 14792)]