18207680

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3347}}^1$

素因数の和:3381

約数の個数: 56

約数和(自身を含む): 45921168

約数和(自身を除く): 27713488

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3347, 5440, 6694, 13388, 16735, 26776, 33470, 53552, 56899, 66940, 107104, 113798, 133880, 214208, 227596, 267760, 284495, 455192, 535520, 568990, 910384, 1071040, 1137980, 1820768, 2275960, 3641536, 4551920, 9103840, 18207680]

約数ペア:

[(1, 18207680), (2, 9103840), (4, 4551920), (5, 3641536), (8, 2275960), (10, 1820768), (16, 1137980), (17, 1071040), (20, 910384), (32, 568990), (34, 535520), (40, 455192), (64, 284495), (68, 267760), (80, 227596), (85, 214208), (136, 133880), (160, 113798), (170, 107104), (272, 66940), (320, 56899), (340, 53552), (544, 33470), (680, 26776), (1088, 16735), (1360, 13388), (2720, 6694), (3347, 5440)]