28935040

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1559}}^1$

素因数の和:1607

約数の個数: 64

約数和(自身を含む): 71604000

約数和(自身を除く): 42668960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1160, 1559, 1856, 2320, 3118, 3712, 4640, 6236, 7795, 9280, 12472, 15590, 18560, 24944, 31180, 45211, 49888, 62360, 90422, 99776, 124720, 180844, 199552, 226055, 249440, 361688, 452110, 498880, 723376, 904220, 997760, 1446752, 1808440, 2893504, 3616880, 5787008, 7233760, 14467520, 28935040]

約数ペア:

[(1, 28935040), (2, 14467520), (4, 7233760), (5, 5787008), (8, 3616880), (10, 2893504), (16, 1808440), (20, 1446752), (29, 997760), (32, 904220), (40, 723376), (58, 498880), (64, 452110), (80, 361688), (116, 249440), (128, 226055), (145, 199552), (160, 180844), (232, 124720), (290, 99776), (320, 90422), (464, 62360), (580, 49888), (640, 45211), (928, 31180), (1160, 24944), (1559, 18560), (1856, 15590), (2320, 12472), (3118, 9280), (3712, 7795), (4640, 6236)]