81989676

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 212459520

約数和(自身を除く): 130469844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 127, 158, 227, 237, 254, 316, 381, 454, 474, 508, 681, 711, 762, 908, 948, 1143, 1362, 1422, 1524, 2043, 2286, 2724, 2844, 4086, 4572, 8172, 10033, 17933, 20066, 28829, 30099, 35866, 40132, 53799, 57658, 60198, 71732, 86487, 90297, 107598, 115316, 120396, 161397, 172974, 180594, 215196, 259461, 322794, 345948, 361188, 518922, 645588, 1037844, 2277491, 4554982, 6832473, 9109964, 13664946, 20497419, 27329892, 40994838, 81989676]

約数ペア:

[(1, 81989676), (2, 40994838), (3, 27329892), (4, 20497419), (6, 13664946), (9, 9109964), (12, 6832473), (18, 4554982), (36, 2277491), (79, 1037844), (127, 645588), (158, 518922), (227, 361188), (237, 345948), (254, 322794), (316, 259461), (381, 215196), (454, 180594), (474, 172974), (508, 161397), (681, 120396), (711, 115316), (762, 107598), (908, 90297), (948, 86487), (1143, 71732), (1362, 60198), (1422, 57658), (1524, 53799), (2043, 40132), (2286, 35866), (2724, 30099), (2844, 28829), (4086, 20066), (4572, 17933), (8172, 10033)]