638611918

素因数分解:

$2^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1\times {\mathrm{1123}}^1$

素因数の和:1552

約数の個数: 32

約数和(自身を含む): 1107095040

約数和(自身を除く): 468483122

約数列:

[1, 2, 7, 14, 151, 269, 302, 538, 1057, 1123, 1883, 2114, 2246, 3766, 7861, 15722, 40619, 81238, 169573, 284333, 302087, 339146, 568666, 604174, 1187011, 2114609, 2374022, 4229218, 45615137, 91230274, 319305959, 638611918]

約数ペア:

[(1, 638611918), (2, 319305959), (7, 91230274), (14, 45615137), (151, 4229218), (269, 2374022), (302, 2114609), (538, 1187011), (1057, 604174), (1123, 568666), (1883, 339146), (2114, 302087), (2246, 284333), (3766, 169573), (7861, 81238), (15722, 40619)]