81132870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:406

約数の個数: 128

約数和(自身を含む): 242694144

約数和(自身を除く): 161561274

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 113, 130, 182, 195, 210, 226, 263, 273, 339, 390, 455, 526, 546, 565, 678, 789, 791, 910, 1130, 1315, 1365, 1469, 1578, 1582, 1695, 1841, 2373, 2630, 2730, 2938, 3390, 3419, 3682, 3945, 3955, 4407, 4746, 5523, 6838, 7345, 7890, 7910, 8814, 9205, 10257, 10283, 11046, 11865, 14690, 17095, 18410, 20514, 20566, 22035, 23730, 23933, 27615, 29719, 30849, 34190, 44070, 47866, 51285, 51415, 55230, 59438, 61698, 71799, 89157, 102570, 102830, 119665, 143598, 148595, 154245, 178314, 208033, 239330, 297190, 308490, 358995, 386347, 416066, 445785, 624099, 717990, 772694, 891570, 1040165, 1159041, 1248198, 1931735, 2080330, 2318082, 2704429, 3120495, 3863470, 5408858, 5795205, 6240990, 8113287, 11590410, 13522145, 16226574, 27044290, 40566435, 81132870]

約数ペア:

[(1, 81132870), (2, 40566435), (3, 27044290), (5, 16226574), (6, 13522145), (7, 11590410), (10, 8113287), (13, 6240990), (14, 5795205), (15, 5408858), (21, 3863470), (26, 3120495), (30, 2704429), (35, 2318082), (39, 2080330), (42, 1931735), (65, 1248198), (70, 1159041), (78, 1040165), (91, 891570), (105, 772694), (113, 717990), (130, 624099), (182, 445785), (195, 416066), (210, 386347), (226, 358995), (263, 308490), (273, 297190), (339, 239330), (390, 208033), (455, 178314), (526, 154245), (546, 148595), (565, 143598), (678, 119665), (789, 102830), (791, 102570), (910, 89157), (1130, 71799), (1315, 61698), (1365, 59438), (1469, 55230), (1578, 51415), (1582, 51285), (1695, 47866), (1841, 44070), (2373, 34190), (2630, 30849), (2730, 29719), (2938, 27615), (3390, 23933), (3419, 23730), (3682, 22035), (3945, 20566), (3955, 20514), (4407, 18410), (4746, 17095), (5523, 14690), (6838, 11865), (7345, 11046), (7890, 10283), (7910, 10257), (8814, 9205)]