281661440

素因数分解:

$2^{12}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{809}}^1$

素因数の和:855

約数の個数: 104

約数和(自身を含む): 716548680

約数和(自身を除く): 434887240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 809, 1024, 1088, 1280, 1360, 1618, 2048, 2176, 2560, 2720, 3236, 4045, 4096, 4352, 5120, 5440, 6472, 8090, 8704, 10240, 10880, 12944, 13753, 16180, 17408, 20480, 21760, 25888, 27506, 32360, 34816, 43520, 51776, 55012, 64720, 68765, 69632, 87040, 103552, 110024, 129440, 137530, 174080, 207104, 220048, 258880, 275060, 348160, 414208, 440096, 517760, 550120, 828416, 880192, 1035520, 1100240, 1656832, 1760384, 2071040, 2200480, 3313664, 3520768, 4142080, 4400960, 7041536, 8284160, 8801920, 14083072, 16568320, 17603840, 28166144, 35207680, 56332288, 70415360, 140830720, 281661440]

約数ペア:

[(1, 281661440), (2, 140830720), (4, 70415360), (5, 56332288), (8, 35207680), (10, 28166144), (16, 17603840), (17, 16568320), (20, 14083072), (32, 8801920), (34, 8284160), (40, 7041536), (64, 4400960), (68, 4142080), (80, 3520768), (85, 3313664), (128, 2200480), (136, 2071040), (160, 1760384), (170, 1656832), (256, 1100240), (272, 1035520), (320, 880192), (340, 828416), (512, 550120), (544, 517760), (640, 440096), (680, 414208), (809, 348160), (1024, 275060), (1088, 258880), (1280, 220048), (1360, 207104), (1618, 174080), (2048, 137530), (2176, 129440), (2560, 110024), (2720, 103552), (3236, 87040), (4045, 69632), (4096, 68765), (4352, 64720), (5120, 55012), (5440, 51776), (6472, 43520), (8090, 34816), (8704, 32360), (10240, 27506), (10880, 25888), (12944, 21760), (13753, 20480), (16180, 17408)]