20196990964

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1\times {\mathrm{15451}}^1$

素因数の和:15928

約数の個数: 48

約数和(自身を含む): 38316015360

約数和(自身を除く): 18119024396

約数列:

[1, 2, 4, 17, 34, 47, 68, 94, 188, 409, 799, 818, 1598, 1636, 3196, 6953, 13906, 15451, 19223, 27812, 30902, 38446, 61804, 76892, 262667, 326791, 525334, 653582, 726197, 1050668, 1307164, 1452394, 2904788, 6319459, 12345349, 12638918, 24690698, 25277836, 49381396, 107430803, 214861606, 297014573, 429723212, 594029146, 1188058292, 5049247741, 10098495482, 20196990964]

約数ペア:

[(1, 20196990964), (2, 10098495482), (4, 5049247741), (17, 1188058292), (34, 594029146), (47, 429723212), (68, 297014573), (94, 214861606), (188, 107430803), (409, 49381396), (799, 25277836), (818, 24690698), (1598, 12638918), (1636, 12345349), (3196, 6319459), (6953, 2904788), (13906, 1452394), (15451, 1307164), (19223, 1050668), (27812, 726197), (30902, 653582), (38446, 525334), (61804, 326791), (76892, 262667)]