51918490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1055

約数の個数: 48

約数和(自身を含む): 104564736

約数和(自身を除く): 52646246

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 403, 806, 845, 991, 1690, 1982, 2015, 4030, 4955, 5239, 9910, 10478, 12883, 25766, 26195, 30721, 52390, 61442, 64415, 128830, 153605, 167479, 307210, 334958, 399373, 798746, 837395, 1674790, 1996865, 3993730, 5191849, 10383698, 25959245, 51918490]

約数ペア:

[(1, 51918490), (2, 25959245), (5, 10383698), (10, 5191849), (13, 3993730), (26, 1996865), (31, 1674790), (62, 837395), (65, 798746), (130, 399373), (155, 334958), (169, 307210), (310, 167479), (338, 153605), (403, 128830), (806, 64415), (845, 61442), (991, 52390), (1690, 30721), (1982, 26195), (2015, 25766), (4030, 12883), (4955, 10478), (5239, 9910)]