31151260

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:288

約数の個数: 96

約数和(自身を含む): 80640000

約数和(自身を除く): 49488740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 239, 245, 266, 343, 380, 478, 490, 532, 665, 686, 931, 956, 980, 1195, 1330, 1372, 1673, 1715, 1862, 2390, 2660, 3346, 3430, 3724, 4541, 4655, 4780, 6517, 6692, 6860, 8365, 9082, 9310, 11711, 13034, 16730, 18164, 18620, 22705, 23422, 26068, 31787, 32585, 33460, 45410, 46844, 58555, 63574, 65170, 81977, 90820, 117110, 127148, 130340, 158935, 163954, 222509, 234220, 317870, 327908, 409885, 445018, 635740, 819770, 890036, 1112545, 1557563, 1639540, 2225090, 3115126, 4450180, 6230252, 7787815, 15575630, 31151260]

約数ペア:

[(1, 31151260), (2, 15575630), (4, 7787815), (5, 6230252), (7, 4450180), (10, 3115126), (14, 2225090), (19, 1639540), (20, 1557563), (28, 1112545), (35, 890036), (38, 819770), (49, 635740), (70, 445018), (76, 409885), (95, 327908), (98, 317870), (133, 234220), (140, 222509), (190, 163954), (196, 158935), (239, 130340), (245, 127148), (266, 117110), (343, 90820), (380, 81977), (478, 65170), (490, 63574), (532, 58555), (665, 46844), (686, 45410), (931, 33460), (956, 32585), (980, 31787), (1195, 26068), (1330, 23422), (1372, 22705), (1673, 18620), (1715, 18164), (1862, 16730), (2390, 13034), (2660, 11711), (3346, 9310), (3430, 9082), (3724, 8365), (4541, 6860), (4655, 6692), (4780, 6517)]