251492956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1163

約数の個数: 72

約数和(自身を含む): 537159168

約数和(自身を除く): 285666212

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 124, 143, 169, 286, 338, 341, 403, 572, 676, 682, 806, 1091, 1364, 1612, 1859, 2182, 3718, 4364, 4433, 5239, 7436, 8866, 10478, 12001, 14183, 17732, 20956, 24002, 28366, 33821, 48004, 56732, 57629, 67642, 115258, 135284, 156013, 184379, 230516, 312026, 368758, 372031, 439673, 624052, 737516, 744062, 879346, 1488124, 1758692, 2028169, 4056338, 4836403, 5715749, 8112676, 9672806, 11431498, 19345612, 22862996, 62873239, 125746478, 251492956]

約数ペア:

[(1, 251492956), (2, 125746478), (4, 62873239), (11, 22862996), (13, 19345612), (22, 11431498), (26, 9672806), (31, 8112676), (44, 5715749), (52, 4836403), (62, 4056338), (124, 2028169), (143, 1758692), (169, 1488124), (286, 879346), (338, 744062), (341, 737516), (403, 624052), (572, 439673), (676, 372031), (682, 368758), (806, 312026), (1091, 230516), (1364, 184379), (1612, 156013), (1859, 135284), (2182, 115258), (3718, 67642), (4364, 57629), (4433, 56732), (5239, 48004), (7436, 33821), (8866, 28366), (10478, 24002), (12001, 20956), (14183, 17732)]