18835812

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 49795200

約数和(自身を除く): 30959388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 79, 111, 148, 158, 179, 222, 237, 316, 333, 358, 444, 474, 537, 666, 711, 716, 948, 1074, 1332, 1422, 1611, 2148, 2844, 2923, 3222, 5846, 6444, 6623, 8769, 11692, 13246, 14141, 17538, 19869, 26307, 26492, 28282, 35076, 39738, 42423, 52614, 56564, 59607, 79476, 84846, 105228, 119214, 127269, 169692, 238428, 254538, 509076, 523217, 1046434, 1569651, 2092868, 3139302, 4708953, 6278604, 9417906, 18835812]

約数ペア:

[(1, 18835812), (2, 9417906), (3, 6278604), (4, 4708953), (6, 3139302), (9, 2092868), (12, 1569651), (18, 1046434), (36, 523217), (37, 509076), (74, 254538), (79, 238428), (111, 169692), (148, 127269), (158, 119214), (179, 105228), (222, 84846), (237, 79476), (316, 59607), (333, 56564), (358, 52614), (444, 42423), (474, 39738), (537, 35076), (666, 28282), (711, 26492), (716, 26307), (948, 19869), (1074, 17538), (1332, 14141), (1422, 13246), (1611, 11692), (2148, 8769), (2844, 6623), (2923, 6444), (3222, 5846)]