179990408

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{1987}}^1$

素因数の和:2086

約数の個数: 48

約数和(自身を含む): 371080080

約数和(自身を除く): 191089672

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 169, 268, 338, 536, 676, 871, 1352, 1742, 1987, 3484, 3974, 6968, 7948, 11323, 15896, 22646, 25831, 45292, 51662, 90584, 103324, 133129, 206648, 266258, 335803, 532516, 671606, 1065032, 1343212, 1730677, 2686424, 3461354, 6922708, 13845416, 22498801, 44997602, 89995204, 179990408]

約数ペア:

[(1, 179990408), (2, 89995204), (4, 44997602), (8, 22498801), (13, 13845416), (26, 6922708), (52, 3461354), (67, 2686424), (104, 1730677), (134, 1343212), (169, 1065032), (268, 671606), (338, 532516), (536, 335803), (676, 266258), (871, 206648), (1352, 133129), (1742, 103324), (1987, 90584), (3484, 51662), (3974, 45292), (6968, 25831), (7948, 22646), (11323, 15896)]