26490280

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 61689600

約数和(自身を除く): 35199320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 83, 101, 158, 166, 202, 316, 332, 395, 404, 415, 505, 632, 664, 790, 808, 830, 1010, 1580, 1660, 2020, 3160, 3320, 4040, 6557, 7979, 8383, 13114, 15958, 16766, 26228, 31916, 32785, 33532, 39895, 41915, 52456, 63832, 65570, 67064, 79790, 83830, 131140, 159580, 167660, 262280, 319160, 335320, 662257, 1324514, 2649028, 3311285, 5298056, 6622570, 13245140, 26490280]

約数ペア:

[(1, 26490280), (2, 13245140), (4, 6622570), (5, 5298056), (8, 3311285), (10, 2649028), (20, 1324514), (40, 662257), (79, 335320), (83, 319160), (101, 262280), (158, 167660), (166, 159580), (202, 131140), (316, 83830), (332, 79790), (395, 67064), (404, 65570), (415, 63832), (505, 52456), (632, 41915), (664, 39895), (790, 33532), (808, 32785), (830, 31916), (1010, 26228), (1580, 16766), (1660, 15958), (2020, 13114), (3160, 8383), (3320, 7979), (4040, 6557)]