20574180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10391}}^1$

素因数の和:10417

約数の個数: 72

約数和(自身を含む): 68088384

約数和(自身を除く): 47514204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10391, 20782, 31173, 41564, 51955, 62346, 93519, 103910, 114301, 124692, 155865, 187038, 207820, 228602, 311730, 342903, 374076, 457204, 467595, 571505, 623460, 685806, 935190, 1028709, 1143010, 1371612, 1714515, 1870380, 2057418, 2286020, 3429030, 4114836, 5143545, 6858060, 10287090, 20574180]

約数ペア:

[(1, 20574180), (2, 10287090), (3, 6858060), (4, 5143545), (5, 4114836), (6, 3429030), (9, 2286020), (10, 2057418), (11, 1870380), (12, 1714515), (15, 1371612), (18, 1143010), (20, 1028709), (22, 935190), (30, 685806), (33, 623460), (36, 571505), (44, 467595), (45, 457204), (55, 374076), (60, 342903), (66, 311730), (90, 228602), (99, 207820), (110, 187038), (132, 155865), (165, 124692), (180, 114301), (198, 103910), (220, 93519), (330, 62346), (396, 51955), (495, 41564), (660, 31173), (990, 20782), (1980, 10391)]