20177887960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2143}}^1\times {\mathrm{8117}}^1$

素因数の和:10300

約数の個数: 64

約数和(自身を含む): 46993478400

約数和(自身を除く): 26815590440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 2143, 4286, 8117, 8572, 10715, 16234, 17144, 21430, 32468, 40585, 42860, 62147, 64936, 81170, 85720, 124294, 162340, 235393, 248588, 310735, 324680, 470786, 497176, 621470, 941572, 1176965, 1242940, 1883144, 2353930, 2485880, 4707860, 9415720, 17394731, 34789462, 69578924, 86973655, 139157848, 173947310, 347894620, 504447199, 695789240, 1008894398, 2017788796, 2522235995, 4035577592, 5044471990, 10088943980, 20177887960]

約数ペア:

[(1, 20177887960), (2, 10088943980), (4, 5044471990), (5, 4035577592), (8, 2522235995), (10, 2017788796), (20, 1008894398), (29, 695789240), (40, 504447199), (58, 347894620), (116, 173947310), (145, 139157848), (232, 86973655), (290, 69578924), (580, 34789462), (1160, 17394731), (2143, 9415720), (4286, 4707860), (8117, 2485880), (8572, 2353930), (10715, 1883144), (16234, 1242940), (17144, 1176965), (21430, 941572), (32468, 621470), (40585, 497176), (42860, 470786), (62147, 324680), (64936, 310735), (81170, 248588), (85720, 235393), (124294, 162340)]