81627240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7643}}^1$

素因数の和:7746

約数の個数: 64

約数和(自身を含む): 247665600

約数和(自身を除く): 166038360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 120, 178, 267, 356, 445, 534, 712, 890, 1068, 1335, 1780, 2136, 2670, 3560, 5340, 7643, 10680, 15286, 22929, 30572, 38215, 45858, 61144, 76430, 91716, 114645, 152860, 183432, 229290, 305720, 458580, 680227, 917160, 1360454, 2040681, 2720908, 3401135, 4081362, 5441816, 6802270, 8162724, 10203405, 13604540, 16325448, 20406810, 27209080, 40813620, 81627240]

約数ペア:

[(1, 81627240), (2, 40813620), (3, 27209080), (4, 20406810), (5, 16325448), (6, 13604540), (8, 10203405), (10, 8162724), (12, 6802270), (15, 5441816), (20, 4081362), (24, 3401135), (30, 2720908), (40, 2040681), (60, 1360454), (89, 917160), (120, 680227), (178, 458580), (267, 305720), (356, 229290), (445, 183432), (534, 152860), (712, 114645), (890, 91716), (1068, 76430), (1335, 61144), (1780, 45858), (2136, 38215), (2670, 30572), (3560, 22929), (5340, 15286), (7643, 10680)]