51489880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1193}}^1$

素因数の和:1300

約数の個数: 64

約数和(自身を含む): 126372960

約数和(自身を除く): 74883080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 83, 104, 130, 166, 260, 332, 415, 520, 664, 830, 1079, 1193, 1660, 2158, 2386, 3320, 4316, 4772, 5395, 5965, 8632, 9544, 10790, 11930, 15509, 21580, 23860, 31018, 43160, 47720, 62036, 77545, 99019, 124072, 155090, 198038, 310180, 396076, 495095, 620360, 792152, 990190, 1287247, 1980380, 2574494, 3960760, 5148988, 6436235, 10297976, 12872470, 25744940, 51489880]

約数ペア:

[(1, 51489880), (2, 25744940), (4, 12872470), (5, 10297976), (8, 6436235), (10, 5148988), (13, 3960760), (20, 2574494), (26, 1980380), (40, 1287247), (52, 990190), (65, 792152), (83, 620360), (104, 495095), (130, 396076), (166, 310180), (260, 198038), (332, 155090), (415, 124072), (520, 99019), (664, 77545), (830, 62036), (1079, 47720), (1193, 43160), (1660, 31018), (2158, 23860), (2386, 21580), (3320, 15509), (4316, 11930), (4772, 10790), (5395, 9544), (5965, 8632)]