19749210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 51770880

約数和(自身を除く): 32021670

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 79, 130, 158, 195, 237, 390, 395, 474, 641, 790, 1027, 1185, 1282, 1923, 2054, 2370, 3081, 3205, 3846, 5135, 6162, 6410, 8333, 9615, 10270, 15405, 16666, 19230, 24999, 30810, 41665, 49998, 50639, 83330, 101278, 124995, 151917, 249990, 253195, 303834, 506390, 658307, 759585, 1316614, 1519170, 1974921, 3291535, 3949842, 6583070, 9874605, 19749210]

約数ペア:

[(1, 19749210), (2, 9874605), (3, 6583070), (5, 3949842), (6, 3291535), (10, 1974921), (13, 1519170), (15, 1316614), (26, 759585), (30, 658307), (39, 506390), (65, 303834), (78, 253195), (79, 249990), (130, 151917), (158, 124995), (195, 101278), (237, 83330), (390, 50639), (395, 49998), (474, 41665), (641, 30810), (790, 24999), (1027, 19230), (1185, 16666), (1282, 15405), (1923, 10270), (2054, 9615), (2370, 8333), (3081, 6410), (3205, 6162), (3846, 5135)]