820801345

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1913}}^1$

素因数の和:2002

約数の個数: 64

約数和(自身を含む): 1296497664

約数和(自身を除く): 475696319

約数列:

[1, 5, 7, 13, 23, 35, 41, 65, 91, 115, 161, 205, 287, 299, 455, 533, 805, 943, 1435, 1495, 1913, 2093, 2665, 3731, 4715, 6601, 9565, 10465, 12259, 13391, 18655, 24869, 33005, 43999, 61295, 66955, 78433, 85813, 124345, 174083, 219995, 307993, 392165, 429065, 549031, 571987, 870415, 1019629, 1539965, 1803959, 2745155, 2859935, 4003909, 5098145, 7137403, 9019795, 12627713, 20019545, 23451467, 35687015, 63138565, 117257335, 164160269, 820801345]

約数ペア:

[(1, 820801345), (5, 164160269), (7, 117257335), (13, 63138565), (23, 35687015), (35, 23451467), (41, 20019545), (65, 12627713), (91, 9019795), (115, 7137403), (161, 5098145), (205, 4003909), (287, 2859935), (299, 2745155), (455, 1803959), (533, 1539965), (805, 1019629), (943, 870415), (1435, 571987), (1495, 549031), (1913, 429065), (2093, 392165), (2665, 307993), (3731, 219995), (4715, 174083), (6601, 124345), (9565, 85813), (10465, 78433), (12259, 66955), (13391, 61295), (18655, 43999), (24869, 33005)]