91478840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{28949}}^1$

素因数の和:29039

約数の個数: 32

約数和(自身を含む): 208440000

約数和(自身を除く): 116961160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 28949, 57898, 115796, 144745, 231592, 289490, 578980, 1157960, 2286971, 4573942, 9147884, 11434855, 18295768, 22869710, 45739420, 91478840]

約数ペア:

[(1, 91478840), (2, 45739420), (4, 22869710), (5, 18295768), (8, 11434855), (10, 9147884), (20, 4573942), (40, 2286971), (79, 1157960), (158, 578980), (316, 289490), (395, 231592), (632, 144745), (790, 115796), (1580, 57898), (3160, 28949)]