205122420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8699}}^1$

素因数の和:8845

約数の個数: 72

約数和(自身を含む): 627026400

約数和(自身を除く): 421903980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 3930, 4716, 5895, 7860, 8699, 11790, 17398, 23580, 26097, 34796, 43495, 52194, 78291, 86990, 104388, 130485, 156582, 173980, 260970, 313164, 391455, 521940, 782910, 1139569, 1565820, 2279138, 3418707, 4558276, 5697845, 6837414, 10256121, 11395690, 13674828, 17093535, 20512242, 22791380, 34187070, 41024484, 51280605, 68374140, 102561210, 205122420]

約数ペア:

[(1, 205122420), (2, 102561210), (3, 68374140), (4, 51280605), (5, 41024484), (6, 34187070), (9, 22791380), (10, 20512242), (12, 17093535), (15, 13674828), (18, 11395690), (20, 10256121), (30, 6837414), (36, 5697845), (45, 4558276), (60, 3418707), (90, 2279138), (131, 1565820), (180, 1139569), (262, 782910), (393, 521940), (524, 391455), (655, 313164), (786, 260970), (1179, 173980), (1310, 156582), (1572, 130485), (1965, 104388), (2358, 86990), (2620, 78291), (3930, 52194), (4716, 43495), (5895, 34796), (7860, 26097), (8699, 23580), (11790, 17398)]