18516955345

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1\times {\mathrm{677}}^1$

素因数の和:1330

約数の個数: 64

約数和(自身を含む): 27021413376

約数和(自身を除く): 8504458031

約数列:

[1, 5, 7, 23, 35, 61, 115, 161, 305, 427, 557, 677, 805, 1403, 2135, 2785, 3385, 3899, 4739, 7015, 9821, 12811, 15571, 19495, 23695, 33977, 41297, 49105, 64055, 77855, 89677, 108997, 169885, 206485, 237839, 289079, 377089, 448385, 544985, 781471, 949831, 1189195, 1445395, 1885445, 2639623, 3907355, 4749155, 5470297, 6648817, 8673047, 13198115, 23002429, 27351485, 33244085, 43365235, 60711329, 115012145, 161017003, 303556645, 529055867, 805085015, 2645279335, 3703391069, 18516955345]

約数ペア:

[(1, 18516955345), (5, 3703391069), (7, 2645279335), (23, 805085015), (35, 529055867), (61, 303556645), (115, 161017003), (161, 115012145), (305, 60711329), (427, 43365235), (557, 33244085), (677, 27351485), (805, 23002429), (1403, 13198115), (2135, 8673047), (2785, 6648817), (3385, 5470297), (3899, 4749155), (4739, 3907355), (7015, 2639623), (9821, 1885445), (12811, 1445395), (15571, 1189195), (19495, 949831), (23695, 781471), (33977, 544985), (41297, 448385), (49105, 377089), (64055, 289079), (77855, 237839), (89677, 206485), (108997, 169885)]