20202910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^2$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 45059616

約数和(自身を除く): 24856706

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 149, 182, 298, 455, 745, 910, 1043, 1490, 1937, 2086, 3874, 5215, 9685, 10430, 13559, 19370, 22201, 27118, 44402, 67795, 111005, 135590, 155407, 222010, 288613, 310814, 577226, 777035, 1443065, 1554070, 2020291, 2886130, 4040582, 10101455, 20202910]

約数ペア:

[(1, 20202910), (2, 10101455), (5, 4040582), (7, 2886130), (10, 2020291), (13, 1554070), (14, 1443065), (26, 777035), (35, 577226), (65, 310814), (70, 288613), (91, 222010), (130, 155407), (149, 135590), (182, 111005), (298, 67795), (455, 44402), (745, 27118), (910, 22201), (1043, 19370), (1490, 13559), (1937, 10430), (2086, 9685), (3874, 5215)]