89912560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 222084000

約数和(自身を除く): 132171440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 149, 152, 190, 298, 304, 380, 397, 596, 745, 760, 794, 1192, 1490, 1520, 1588, 1985, 2384, 2831, 2980, 3176, 3970, 5662, 5960, 6352, 7543, 7940, 11324, 11920, 14155, 15086, 15880, 22648, 28310, 30172, 31760, 37715, 45296, 56620, 59153, 60344, 75430, 113240, 118306, 120688, 150860, 226480, 236612, 295765, 301720, 473224, 591530, 603440, 946448, 1123907, 1183060, 2247814, 2366120, 4495628, 4732240, 5619535, 8991256, 11239070, 17982512, 22478140, 44956280, 89912560]

約数ペア:

[(1, 89912560), (2, 44956280), (4, 22478140), (5, 17982512), (8, 11239070), (10, 8991256), (16, 5619535), (19, 4732240), (20, 4495628), (38, 2366120), (40, 2247814), (76, 1183060), (80, 1123907), (95, 946448), (149, 603440), (152, 591530), (190, 473224), (298, 301720), (304, 295765), (380, 236612), (397, 226480), (596, 150860), (745, 120688), (760, 118306), (794, 113240), (1192, 75430), (1490, 60344), (1520, 59153), (1588, 56620), (1985, 45296), (2384, 37715), (2831, 31760), (2980, 30172), (3176, 28310), (3970, 22648), (5662, 15880), (5960, 15086), (6352, 14155), (7543, 11920), (7940, 11324)]