18138428

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 41368320

約数和(自身を除く): 23229892

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 49, 77, 94, 98, 154, 179, 188, 196, 308, 329, 358, 517, 539, 658, 716, 1034, 1078, 1253, 1316, 1969, 2068, 2156, 2303, 2506, 3619, 3938, 4606, 5012, 7238, 7876, 8413, 8771, 9212, 13783, 14476, 16826, 17542, 25333, 27566, 33652, 35084, 50666, 55132, 58891, 92543, 96481, 101332, 117782, 185086, 192962, 235564, 370172, 385924, 412237, 647801, 824474, 1295602, 1648948, 2591204, 4534607, 9069214, 18138428]

約数ペア:

[(1, 18138428), (2, 9069214), (4, 4534607), (7, 2591204), (11, 1648948), (14, 1295602), (22, 824474), (28, 647801), (44, 412237), (47, 385924), (49, 370172), (77, 235564), (94, 192962), (98, 185086), (154, 117782), (179, 101332), (188, 96481), (196, 92543), (308, 58891), (329, 55132), (358, 50666), (517, 35084), (539, 33652), (658, 27566), (716, 25333), (1034, 17542), (1078, 16826), (1253, 14476), (1316, 13783), (1969, 9212), (2068, 8771), (2156, 8413), (2303, 7876), (2506, 7238), (3619, 5012), (3938, 4606)]