64891515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 117089280

約数和(自身を除く): 52197765

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 71, 109, 129, 195, 213, 215, 327, 355, 545, 559, 645, 923, 1065, 1417, 1635, 1677, 2769, 2795, 3053, 4251, 4615, 4687, 7085, 7739, 8385, 9159, 13845, 14061, 15265, 21255, 23217, 23435, 38695, 39689, 45795, 60931, 70305, 100607, 116085, 119067, 182793, 198445, 301821, 304655, 332777, 503035, 595335, 913965, 998331, 1509105, 1663885, 4326101, 4991655, 12978303, 21630505, 64891515]

約数ペア:

[(1, 64891515), (3, 21630505), (5, 12978303), (13, 4991655), (15, 4326101), (39, 1663885), (43, 1509105), (65, 998331), (71, 913965), (109, 595335), (129, 503035), (195, 332777), (213, 304655), (215, 301821), (327, 198445), (355, 182793), (545, 119067), (559, 116085), (645, 100607), (923, 70305), (1065, 60931), (1417, 45795), (1635, 39689), (1677, 38695), (2769, 23435), (2795, 23217), (3053, 21255), (4251, 15265), (4615, 14061), (4687, 13845), (7085, 9159), (7739, 8385)]