20688228

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:697

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 37100412

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 89, 99, 132, 178, 198, 267, 356, 396, 534, 587, 801, 979, 1068, 1174, 1602, 1761, 1958, 2348, 2937, 3204, 3522, 3916, 5283, 5874, 6457, 7044, 8811, 10566, 11748, 12914, 17622, 19371, 21132, 25828, 35244, 38742, 52243, 58113, 77484, 104486, 116226, 156729, 208972, 232452, 313458, 470187, 574673, 626916, 940374, 1149346, 1724019, 1880748, 2298692, 3448038, 5172057, 6896076, 10344114, 20688228]

約数ペア:

[(1, 20688228), (2, 10344114), (3, 6896076), (4, 5172057), (6, 3448038), (9, 2298692), (11, 1880748), (12, 1724019), (18, 1149346), (22, 940374), (33, 626916), (36, 574673), (44, 470187), (66, 313458), (89, 232452), (99, 208972), (132, 156729), (178, 116226), (198, 104486), (267, 77484), (356, 58113), (396, 52243), (534, 38742), (587, 35244), (801, 25828), (979, 21132), (1068, 19371), (1174, 17622), (1602, 12914), (1761, 11748), (1958, 10566), (2348, 8811), (2937, 7044), (3204, 6457), (3522, 5874), (3916, 5283)]