81439728

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{239}}^1$

素因数の和:510

約数の個数: 80

約数和(自身を含む): 219033600

約数和(自身を除く): 137593872

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 229, 239, 248, 372, 458, 478, 496, 687, 717, 744, 916, 956, 1374, 1434, 1488, 1832, 1912, 2748, 2868, 3664, 3824, 5496, 5736, 7099, 7409, 10992, 11472, 14198, 14818, 21297, 22227, 28396, 29636, 42594, 44454, 54731, 56792, 59272, 85188, 88908, 109462, 113584, 118544, 164193, 170376, 177816, 218924, 328386, 340752, 355632, 437848, 656772, 875696, 1313544, 1696661, 2627088, 3393322, 5089983, 6786644, 10179966, 13573288, 20359932, 27146576, 40719864, 81439728]

約数ペア:

[(1, 81439728), (2, 40719864), (3, 27146576), (4, 20359932), (6, 13573288), (8, 10179966), (12, 6786644), (16, 5089983), (24, 3393322), (31, 2627088), (48, 1696661), (62, 1313544), (93, 875696), (124, 656772), (186, 437848), (229, 355632), (239, 340752), (248, 328386), (372, 218924), (458, 177816), (478, 170376), (496, 164193), (687, 118544), (717, 113584), (744, 109462), (916, 88908), (956, 85188), (1374, 59272), (1434, 56792), (1488, 54731), (1832, 44454), (1912, 42594), (2748, 29636), (2868, 28396), (3664, 22227), (3824, 21297), (5496, 14818), (5736, 14198), (7099, 11472), (7409, 10992)]