90891440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59797}}^1$

素因数の和:59829

約数の個数: 40

約数和(自身を含む): 222448560

約数和(自身を除く): 131557120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 59797, 119594, 239188, 298985, 478376, 597970, 956752, 1136143, 1195940, 2272286, 2391880, 4544572, 4783760, 5680715, 9089144, 11361430, 18178288, 22722860, 45445720, 90891440]

約数ペア:

[(1, 90891440), (2, 45445720), (4, 22722860), (5, 18178288), (8, 11361430), (10, 9089144), (16, 5680715), (19, 4783760), (20, 4544572), (38, 2391880), (40, 2272286), (76, 1195940), (80, 1136143), (95, 956752), (152, 597970), (190, 478376), (304, 298985), (380, 239188), (760, 119594), (1520, 59797)]