28345480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11617}}^1$

素因数の和:11689

約数の個数: 32

約数和(自身を含む): 64828440

約数和(自身を除く): 36482960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11617, 23234, 46468, 58085, 92936, 116170, 232340, 464680, 708637, 1417274, 2834548, 3543185, 5669096, 7086370, 14172740, 28345480]

約数ペア:

[(1, 28345480), (2, 14172740), (4, 7086370), (5, 5669096), (8, 3543185), (10, 2834548), (20, 1417274), (40, 708637), (61, 464680), (122, 232340), (244, 116170), (305, 92936), (488, 58085), (610, 46468), (1220, 23234), (2440, 11617)]