78374780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{8689}}^1$

素因数の和:8750

約数の個数: 48

約数和(自身を含む): 183949920

約数和(自身を除く): 105575140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 8689, 9020, 17378, 34756, 43445, 86890, 95579, 173780, 191158, 356249, 382316, 477895, 712498, 955790, 1424996, 1781245, 1911580, 3562490, 3918739, 7124980, 7837478, 15674956, 19593695, 39187390, 78374780]

約数ペア:

[(1, 78374780), (2, 39187390), (4, 19593695), (5, 15674956), (10, 7837478), (11, 7124980), (20, 3918739), (22, 3562490), (41, 1911580), (44, 1781245), (55, 1424996), (82, 955790), (110, 712498), (164, 477895), (205, 382316), (220, 356249), (410, 191158), (451, 173780), (820, 95579), (902, 86890), (1804, 43445), (2255, 34756), (4510, 17378), (8689, 9020)]