89904620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 208013904

約数和(自身を除く): 118109284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 169, 260, 268, 335, 338, 397, 670, 676, 794, 845, 871, 1340, 1588, 1690, 1742, 1985, 3380, 3484, 3970, 4355, 5161, 7940, 8710, 10322, 11323, 17420, 20644, 22646, 25805, 26599, 45292, 51610, 53198, 56615, 67093, 103220, 106396, 113230, 132995, 134186, 226460, 265990, 268372, 335465, 345787, 531980, 670930, 691574, 1341860, 1383148, 1728935, 3457870, 4495231, 6915740, 8990462, 17980924, 22476155, 44952310, 89904620]

約数ペア:

[(1, 89904620), (2, 44952310), (4, 22476155), (5, 17980924), (10, 8990462), (13, 6915740), (20, 4495231), (26, 3457870), (52, 1728935), (65, 1383148), (67, 1341860), (130, 691574), (134, 670930), (169, 531980), (260, 345787), (268, 335465), (335, 268372), (338, 265990), (397, 226460), (670, 134186), (676, 132995), (794, 113230), (845, 106396), (871, 103220), (1340, 67093), (1588, 56615), (1690, 53198), (1742, 51610), (1985, 45292), (3380, 26599), (3484, 25805), (3970, 22646), (4355, 20644), (5161, 17420), (7940, 11323), (8710, 10322)]