168991880

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{25919}}^1$

素因数の和:26093

約数の個数: 32

約数和(自身を含む): 382579200

約数和(自身を除く): 213587320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 25919, 51838, 103676, 129595, 207352, 259190, 518380, 1036760, 4224797, 8449594, 16899188, 21123985, 33798376, 42247970, 84495940, 168991880]

約数ペア:

[(1, 168991880), (2, 84495940), (4, 42247970), (5, 33798376), (8, 21123985), (10, 16899188), (20, 8449594), (40, 4224797), (163, 1036760), (326, 518380), (652, 259190), (815, 207352), (1304, 129595), (1630, 103676), (3260, 51838), (6520, 25919)]