168993220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{40429}}^1$

素因数の和:40468

約数の個数: 48

約数和(自身を含む): 407534400

約数和(自身を除く): 238541180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 40429, 80858, 161716, 202145, 404290, 444719, 768151, 808580, 889438, 1536302, 1778876, 2223595, 3072604, 3840755, 4447190, 7681510, 8449661, 8894380, 15363020, 16899322, 33798644, 42248305, 84496610, 168993220]

約数ペア:

[(1, 168993220), (2, 84496610), (4, 42248305), (5, 33798644), (10, 16899322), (11, 15363020), (19, 8894380), (20, 8449661), (22, 7681510), (38, 4447190), (44, 3840755), (55, 3072604), (76, 2223595), (95, 1778876), (110, 1536302), (190, 889438), (209, 808580), (220, 768151), (380, 444719), (418, 404290), (836, 202145), (1045, 161716), (2090, 80858), (4180, 40429)]