71063780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1879}}^1$

素因数の和:1980

約数の個数: 48

約数和(自身を含む): 156656640

約数和(自身を除く): 85592860

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1879, 1891, 3758, 3782, 7516, 7564, 9395, 9455, 18790, 18910, 37580, 37820, 58249, 114619, 116498, 229238, 232996, 291245, 458476, 573095, 582490, 1146190, 1164980, 2292380, 3553189, 7106378, 14212756, 17765945, 35531890, 71063780]

約数ペア:

[(1, 71063780), (2, 35531890), (4, 17765945), (5, 14212756), (10, 7106378), (20, 3553189), (31, 2292380), (61, 1164980), (62, 1146190), (122, 582490), (124, 573095), (155, 458476), (244, 291245), (305, 232996), (310, 229238), (610, 116498), (620, 114619), (1220, 58249), (1879, 37820), (1891, 37580), (3758, 18910), (3782, 18790), (7516, 9455), (7564, 9395)]