18419704

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 38018880

約数和(自身を除く): 19599176

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 257, 289, 514, 527, 578, 1028, 1054, 1156, 2056, 2108, 2312, 4216, 4369, 7967, 8738, 8959, 15934, 17476, 17918, 31868, 34952, 35836, 63736, 71672, 74273, 135439, 148546, 270878, 297092, 541756, 594184, 1083512, 2302463, 4604926, 9209852, 18419704]

約数ペア:

[(1, 18419704), (2, 9209852), (4, 4604926), (8, 2302463), (17, 1083512), (31, 594184), (34, 541756), (62, 297092), (68, 270878), (124, 148546), (136, 135439), (248, 74273), (257, 71672), (289, 63736), (514, 35836), (527, 34952), (578, 31868), (1028, 17918), (1054, 17476), (1156, 15934), (2056, 8959), (2108, 8738), (2312, 7967), (4216, 4369)]