80506400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7741}}^1$

素因数の和:7774

約数の個数: 72

約数和(自身を含む): 211681764

約数和(自身を除く): 131175364

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2600, 5200, 7741, 10400, 15482, 30964, 38705, 61928, 77410, 100633, 123856, 154820, 193525, 201266, 247712, 309640, 387050, 402532, 503165, 619280, 774100, 805064, 1006330, 1238560, 1548200, 1610128, 2012660, 2515825, 3096400, 3220256, 4025320, 5031650, 6192800, 8050640, 10063300, 16101280, 20126600, 40253200, 80506400]

約数ペア:

[(1, 80506400), (2, 40253200), (4, 20126600), (5, 16101280), (8, 10063300), (10, 8050640), (13, 6192800), (16, 5031650), (20, 4025320), (25, 3220256), (26, 3096400), (32, 2515825), (40, 2012660), (50, 1610128), (52, 1548200), (65, 1238560), (80, 1006330), (100, 805064), (104, 774100), (130, 619280), (160, 503165), (200, 402532), (208, 387050), (260, 309640), (325, 247712), (400, 201266), (416, 193525), (520, 154820), (650, 123856), (800, 100633), (1040, 77410), (1300, 61928), (2080, 38705), (2600, 30964), (5200, 15482), (7741, 10400)]