28747880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1237}}^1$

素因数の和:1338

約数の個数: 64

約数和(自身を含む): 74874240

約数和(自身を除く): 46126360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 83, 140, 166, 280, 332, 415, 581, 664, 830, 1162, 1237, 1660, 2324, 2474, 2905, 3320, 4648, 4948, 5810, 6185, 8659, 9896, 11620, 12370, 17318, 23240, 24740, 34636, 43295, 49480, 69272, 86590, 102671, 173180, 205342, 346360, 410684, 513355, 718697, 821368, 1026710, 1437394, 2053420, 2874788, 3593485, 4106840, 5749576, 7186970, 14373940, 28747880]

約数ペア:

[(1, 28747880), (2, 14373940), (4, 7186970), (5, 5749576), (7, 4106840), (8, 3593485), (10, 2874788), (14, 2053420), (20, 1437394), (28, 1026710), (35, 821368), (40, 718697), (56, 513355), (70, 410684), (83, 346360), (140, 205342), (166, 173180), (280, 102671), (332, 86590), (415, 69272), (581, 49480), (664, 43295), (830, 34636), (1162, 24740), (1237, 23240), (1660, 17318), (2324, 12370), (2474, 11620), (2905, 9896), (3320, 8659), (4648, 6185), (4948, 5810)]