163886720

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1571}}^1$

素因数の和:1753

約数の個数: 64

約数和(自身を含む): 394446240

約数和(自身を除く): 230559520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 320, 326, 640, 652, 815, 1304, 1571, 1630, 2608, 3142, 3260, 5216, 6284, 6520, 7855, 10432, 12568, 13040, 15710, 20864, 25136, 26080, 31420, 50272, 52160, 62840, 100544, 104320, 125680, 201088, 251360, 256073, 502720, 512146, 1005440, 1024292, 1280365, 2048584, 2560730, 4097168, 5121460, 8194336, 10242920, 16388672, 20485840, 32777344, 40971680, 81943360, 163886720]

約数ペア:

[(1, 163886720), (2, 81943360), (4, 40971680), (5, 32777344), (8, 20485840), (10, 16388672), (16, 10242920), (20, 8194336), (32, 5121460), (40, 4097168), (64, 2560730), (80, 2048584), (128, 1280365), (160, 1024292), (163, 1005440), (320, 512146), (326, 502720), (640, 256073), (652, 251360), (815, 201088), (1304, 125680), (1571, 104320), (1630, 100544), (2608, 62840), (3142, 52160), (3260, 50272), (5216, 31420), (6284, 26080), (6520, 25136), (7855, 20864), (10432, 15710), (12568, 13040)]