81839360

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3761}}^1$

素因数の和:3799

約数の個数: 72

約数和(自身を含む): 207617256

約数和(自身を除く): 125777896

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, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 3761, 4352, 5440, 7522, 10880, 15044, 18805, 21760, 30088, 37610, 60176, 63937, 75220, 120352, 127874, 150440, 240704, 255748, 300880, 319685, 481408, 511496, 601760, 639370, 962816, 1022992, 1203520, 1278740, 2045984, 2407040, 2557480, 4091968, 4814080, 5114960, 8183936, 10229920, 16367872, 20459840, 40919680, 81839360]

約数ペア:

[(1, 81839360), (2, 40919680), (4, 20459840), (5, 16367872), (8, 10229920), (10, 8183936), (16, 5114960), (17, 4814080), (20, 4091968), (32, 2557480), (34, 2407040), (40, 2045984), (64, 1278740), (68, 1203520), (80, 1022992), (85, 962816), (128, 639370), (136, 601760), (160, 511496), (170, 481408), (256, 319685), (272, 300880), (320, 255748), (340, 240704), (544, 150440), (640, 127874), (680, 120352), (1088, 75220), (1280, 63937), (1360, 60176), (2176, 37610), (2720, 30088), (3761, 21760), (4352, 18805), (5440, 15044), (7522, 10880)]