1281090816

素因数分解:

$2^8\times 3^4\times {\mathrm{61781}}^1$

素因数の和:61809

約数の個数: 90

約数和(自身を含む): 3820042842

約数和(自身を除く): 2538952026

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 256, 288, 324, 384, 432, 576, 648, 768, 864, 1152, 1296, 1728, 2304, 2592, 3456, 5184, 6912, 10368, 20736, 61781, 123562, 185343, 247124, 370686, 494248, 556029, 741372, 988496, 1112058, 1482744, 1668087, 1976992, 2224116, 2965488, 3336174, 3953984, 4448232, 5004261, 5930976, 6672348, 7907968, 8896464, 10008522, 11861952, 13344696, 15815936, 17792928, 20017044, 23723904, 26689392, 35585856, 40034088, 47447808, 53378784, 71171712, 80068176, 106757568, 142343424, 160136352, 213515136, 320272704, 427030272, 640545408, 1281090816]

約数ペア:

[(1, 1281090816), (2, 640545408), (3, 427030272), (4, 320272704), (6, 213515136), (8, 160136352), (9, 142343424), (12, 106757568), (16, 80068176), (18, 71171712), (24, 53378784), (27, 47447808), (32, 40034088), (36, 35585856), (48, 26689392), (54, 23723904), (64, 20017044), (72, 17792928), (81, 15815936), (96, 13344696), (108, 11861952), (128, 10008522), (144, 8896464), (162, 7907968), (192, 6672348), (216, 5930976), (256, 5004261), (288, 4448232), (324, 3953984), (384, 3336174), (432, 2965488), (576, 2224116), (648, 1976992), (768, 1668087), (864, 1482744), (1152, 1112058), (1296, 988496), (1728, 741372), (2304, 556029), (2592, 494248), (3456, 370686), (5184, 247124), (6912, 185343), (10368, 123562), (20736, 61781)]