127983160

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:592

約数の個数: 64

約数和(自身を含む): 295228800

約数和(自身を除く): 167245640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 101, 158, 202, 316, 395, 401, 404, 505, 632, 790, 802, 808, 1010, 1580, 1604, 2005, 2020, 3160, 3208, 4010, 4040, 7979, 8020, 15958, 16040, 31679, 31916, 39895, 40501, 63358, 63832, 79790, 81002, 126716, 158395, 159580, 162004, 202505, 253432, 316790, 319160, 324008, 405010, 633580, 810020, 1267160, 1620040, 3199579, 6399158, 12798316, 15997895, 25596632, 31995790, 63991580, 127983160]

約数ペア:

[(1, 127983160), (2, 63991580), (4, 31995790), (5, 25596632), (8, 15997895), (10, 12798316), (20, 6399158), (40, 3199579), (79, 1620040), (101, 1267160), (158, 810020), (202, 633580), (316, 405010), (395, 324008), (401, 319160), (404, 316790), (505, 253432), (632, 202505), (790, 162004), (802, 159580), (808, 158395), (1010, 126716), (1580, 81002), (1604, 79790), (2005, 63832), (2020, 63358), (3160, 40501), (3208, 39895), (4010, 31916), (4040, 31679), (7979, 16040), (8020, 15958)]