1997820512355

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1\times {\mathrm{126107}}^1$

素因数の和:126684

約数の個数: 64

約数和(自身を含む): 3355885209600

約数和(自身を除く): 1358064697245

約数列:

[1, 3, 5, 15, 29, 79, 87, 145, 237, 395, 435, 461, 1185, 1383, 2291, 2305, 6873, 6915, 11455, 13369, 34365, 36419, 40107, 66845, 109257, 126107, 182095, 200535, 378321, 546285, 630535, 1056151, 1891605, 3168453, 3657103, 5280755, 9962453, 10971309, 15842265, 18285515, 29887359, 49812265, 54856545, 58135327, 149436795, 174405981, 288911137, 290676635, 866733411, 872029905, 1444555685, 1685924483, 4333667055, 4592690833, 5057773449, 8429622415, 13778072499, 22963454165, 25288867245, 68890362495, 133188034157, 399564102471, 665940170785, 1997820512355]

約数ペア:

[(1, 1997820512355), (3, 665940170785), (5, 399564102471), (15, 133188034157), (29, 68890362495), (79, 25288867245), (87, 22963454165), (145, 13778072499), (237, 8429622415), (395, 5057773449), (435, 4592690833), (461, 4333667055), (1185, 1685924483), (1383, 1444555685), (2291, 872029905), (2305, 866733411), (6873, 290676635), (6915, 288911137), (11455, 174405981), (13369, 149436795), (34365, 58135327), (36419, 54856545), (40107, 49812265), (66845, 29887359), (109257, 18285515), (126107, 15842265), (182095, 10971309), (200535, 9962453), (378321, 5280755), (546285, 3657103), (630535, 3168453), (1056151, 1891605)]