77906140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2011}}^1$

素因数の和:2182

約数の個数: 48

約数和(自身を含む): 177458400

約数和(自身を除く): 99552260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 596, 745, 1490, 1937, 2011, 2980, 3874, 4022, 7748, 8044, 9685, 10055, 19370, 20110, 26143, 38740, 40220, 52286, 104572, 130715, 261430, 299639, 522860, 599278, 1198556, 1498195, 2996390, 3895307, 5992780, 7790614, 15581228, 19476535, 38953070, 77906140]

約数ペア:

[(1, 77906140), (2, 38953070), (4, 19476535), (5, 15581228), (10, 7790614), (13, 5992780), (20, 3895307), (26, 2996390), (52, 1498195), (65, 1198556), (130, 599278), (149, 522860), (260, 299639), (298, 261430), (596, 130715), (745, 104572), (1490, 52286), (1937, 40220), (2011, 38740), (2980, 26143), (3874, 20110), (4022, 19370), (7748, 10055), (8044, 9685)]