18595010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{277}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 39361464

約数和(自身を除く): 20766454

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 137, 245, 274, 277, 490, 554, 685, 959, 1370, 1385, 1918, 1939, 2770, 3878, 4795, 6713, 9590, 9695, 13426, 13573, 19390, 27146, 33565, 37949, 67130, 67865, 75898, 135730, 189745, 265643, 379490, 531286, 1328215, 1859501, 2656430, 3719002, 9297505, 18595010]

約数ペア:

[(1, 18595010), (2, 9297505), (5, 3719002), (7, 2656430), (10, 1859501), (14, 1328215), (35, 531286), (49, 379490), (70, 265643), (98, 189745), (137, 135730), (245, 75898), (274, 67865), (277, 67130), (490, 37949), (554, 33565), (685, 27146), (959, 19390), (1370, 13573), (1385, 13426), (1918, 9695), (1939, 9590), (2770, 6713), (3878, 4795)]