206879660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{631}}^1$

素因数の和:763

約数の個数: 72

約数和(自身を含む): 476040096

約数和(自身を除く): 269160436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 169, 194, 260, 338, 388, 485, 631, 676, 845, 970, 1261, 1262, 1690, 1940, 2522, 2524, 3155, 3380, 5044, 6305, 6310, 8203, 12610, 12620, 16393, 16406, 25220, 32786, 32812, 41015, 61207, 65572, 81965, 82030, 106639, 122414, 163930, 164060, 213278, 244828, 306035, 327860, 426556, 533195, 612070, 795691, 1066390, 1224140, 1591382, 2132780, 3182764, 3978455, 7956910, 10343983, 15913820, 20687966, 41375932, 51719915, 103439830, 206879660]

約数ペア:

[(1, 206879660), (2, 103439830), (4, 51719915), (5, 41375932), (10, 20687966), (13, 15913820), (20, 10343983), (26, 7956910), (52, 3978455), (65, 3182764), (97, 2132780), (130, 1591382), (169, 1224140), (194, 1066390), (260, 795691), (338, 612070), (388, 533195), (485, 426556), (631, 327860), (676, 306035), (845, 244828), (970, 213278), (1261, 164060), (1262, 163930), (1690, 122414), (1940, 106639), (2522, 82030), (2524, 81965), (3155, 65572), (3380, 61207), (5044, 41015), (6305, 32812), (6310, 32786), (8203, 25220), (12610, 16406), (12620, 16393)]