28108220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10567}}^1$

素因数の和:10602

約数の個数: 48

約数和(自身を含む): 71016960

約数和(自身を除く): 42908740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 10567, 21134, 42268, 52835, 73969, 105670, 147938, 200773, 211340, 295876, 369845, 401546, 739690, 803092, 1003865, 1405411, 1479380, 2007730, 2810822, 4015460, 5621644, 7027055, 14054110, 28108220]

約数ペア:

[(1, 28108220), (2, 14054110), (4, 7027055), (5, 5621644), (7, 4015460), (10, 2810822), (14, 2007730), (19, 1479380), (20, 1405411), (28, 1003865), (35, 803092), (38, 739690), (70, 401546), (76, 369845), (95, 295876), (133, 211340), (140, 200773), (190, 147938), (266, 105670), (380, 73969), (532, 52835), (665, 42268), (1330, 21134), (2660, 10567)]