399223444

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{281}}^1\times {\mathrm{1229}}^1$

素因数の和:1548

約数の個数: 36

約数和(自身を含む): 745402140

約数和(自身を除く): 346178696

約数列:

[1, 2, 4, 17, 34, 68, 281, 289, 562, 578, 1124, 1156, 1229, 2458, 4777, 4916, 9554, 19108, 20893, 41786, 81209, 83572, 162418, 324836, 345349, 355181, 690698, 710362, 1381396, 1420724, 5870933, 11741866, 23483732, 99805861, 199611722, 399223444]

約数ペア:

[(1, 399223444), (2, 199611722), (4, 99805861), (17, 23483732), (34, 11741866), (68, 5870933), (281, 1420724), (289, 1381396), (562, 710362), (578, 690698), (1124, 355181), (1156, 345349), (1229, 324836), (2458, 162418), (4777, 83572), (4916, 81209), (9554, 41786), (19108, 20893)]