254343310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^2$

素因数の和:230

約数の個数: 72

約数和(自身を含む): 527764680

約数和(自身を除く): 273421370

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 89, 95, 130, 169, 178, 190, 247, 338, 445, 494, 845, 890, 1157, 1235, 1690, 1691, 2314, 2470, 3211, 3382, 5785, 6422, 7921, 8455, 11570, 15041, 15842, 16055, 16910, 21983, 30082, 32110, 39605, 43966, 75205, 79210, 102973, 109915, 150410, 150499, 205946, 219830, 285779, 300998, 514865, 571558, 752495, 1029730, 1338649, 1428895, 1504990, 1956487, 2677298, 2857790, 3912974, 6693245, 9782435, 13386490, 19564870, 25434331, 50868662, 127171655, 254343310]

約数ペア:

[(1, 254343310), (2, 127171655), (5, 50868662), (10, 25434331), (13, 19564870), (19, 13386490), (26, 9782435), (38, 6693245), (65, 3912974), (89, 2857790), (95, 2677298), (130, 1956487), (169, 1504990), (178, 1428895), (190, 1338649), (247, 1029730), (338, 752495), (445, 571558), (494, 514865), (845, 300998), (890, 285779), (1157, 219830), (1235, 205946), (1690, 150499), (1691, 150410), (2314, 109915), (2470, 102973), (3211, 79210), (3382, 75205), (5785, 43966), (6422, 39605), (7921, 32110), (8455, 30082), (11570, 21983), (15041, 16910), (15842, 16055)]