278315388

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{12653}}^1$

素因数の和:12723

約数の個数: 72

約数和(自身を含む): 773817408

約数和(自身を除く): 495502020

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 47, 52, 78, 94, 117, 141, 156, 188, 234, 282, 423, 468, 564, 611, 846, 1222, 1692, 1833, 2444, 3666, 5499, 7332, 10998, 12653, 21996, 25306, 37959, 50612, 75918, 113877, 151836, 164489, 227754, 328978, 455508, 493467, 594691, 657956, 986934, 1189382, 1480401, 1784073, 1973868, 2378764, 2960802, 3568146, 5352219, 5921604, 7136292, 7730983, 10704438, 15461966, 21408876, 23192949, 30923932, 46385898, 69578847, 92771796, 139157694, 278315388]

約数ペア:

[(1, 278315388), (2, 139157694), (3, 92771796), (4, 69578847), (6, 46385898), (9, 30923932), (12, 23192949), (13, 21408876), (18, 15461966), (26, 10704438), (36, 7730983), (39, 7136292), (47, 5921604), (52, 5352219), (78, 3568146), (94, 2960802), (117, 2378764), (141, 1973868), (156, 1784073), (188, 1480401), (234, 1189382), (282, 986934), (423, 657956), (468, 594691), (564, 493467), (611, 455508), (846, 328978), (1222, 227754), (1692, 164489), (1833, 151836), (2444, 113877), (3666, 75918), (5499, 50612), (7332, 37959), (10998, 25306), (12653, 21996)]