19993190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 44509824

約数和(自身を除く): 24516634

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 53, 70, 85, 106, 119, 170, 238, 265, 317, 371, 530, 595, 634, 742, 901, 1190, 1585, 1802, 1855, 2219, 3170, 3710, 4438, 4505, 5389, 6307, 9010, 10778, 11095, 12614, 16801, 22190, 26945, 31535, 33602, 37723, 53890, 63070, 75446, 84005, 117607, 168010, 188615, 235214, 285617, 377230, 571234, 588035, 1176070, 1428085, 1999319, 2856170, 3998638, 9996595, 19993190]

約数ペア:

[(1, 19993190), (2, 9996595), (5, 3998638), (7, 2856170), (10, 1999319), (14, 1428085), (17, 1176070), (34, 588035), (35, 571234), (53, 377230), (70, 285617), (85, 235214), (106, 188615), (119, 168010), (170, 117607), (238, 84005), (265, 75446), (317, 63070), (371, 53890), (530, 37723), (595, 33602), (634, 31535), (742, 26945), (901, 22190), (1190, 16801), (1585, 12614), (1802, 11095), (1855, 10778), (2219, 9010), (3170, 6307), (3710, 5389), (4438, 4505)]