622872820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{39979}}^1$

素因数の和:40048

約数の個数: 48

約数和(自身を含む): 1410494400

約数和(自身を除く): 787621580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 39979, 79958, 159916, 199895, 399790, 759601, 799580, 1519202, 1639139, 3038404, 3278278, 3798005, 6556556, 7596010, 8195695, 15192020, 16391390, 31143641, 32782780, 62287282, 124574564, 155718205, 311436410, 622872820]

約数ペア:

[(1, 622872820), (2, 311436410), (4, 155718205), (5, 124574564), (10, 62287282), (19, 32782780), (20, 31143641), (38, 16391390), (41, 15192020), (76, 8195695), (82, 7596010), (95, 6556556), (164, 3798005), (190, 3278278), (205, 3038404), (380, 1639139), (410, 1519202), (779, 799580), (820, 759601), (1558, 399790), (3116, 199895), (3895, 159916), (7790, 79958), (15580, 39979)]