20347819910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{109391}}^1$

素因数の和:109517

約数の個数: 64

約数和(自身を含む): 42531609600

約数和(自身を除く): 22183789690

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 89, 95, 110, 178, 190, 209, 418, 445, 890, 979, 1045, 1691, 1958, 2090, 3382, 4895, 8455, 9790, 16910, 18601, 37202, 93005, 109391, 186010, 218782, 546955, 1093910, 1203301, 2078429, 2406602, 4156858, 6016505, 9735799, 10392145, 12033010, 19471598, 20784290, 22862719, 45725438, 48678995, 97357990, 107093789, 114313595, 184980181, 214187578, 228627190, 369960362, 535468945, 924900905, 1070937890, 1849801810, 2034781991, 4069563982, 10173909955, 20347819910]

約数ペア:

[(1, 20347819910), (2, 10173909955), (5, 4069563982), (10, 2034781991), (11, 1849801810), (19, 1070937890), (22, 924900905), (38, 535468945), (55, 369960362), (89, 228627190), (95, 214187578), (110, 184980181), (178, 114313595), (190, 107093789), (209, 97357990), (418, 48678995), (445, 45725438), (890, 22862719), (979, 20784290), (1045, 19471598), (1691, 12033010), (1958, 10392145), (2090, 9735799), (3382, 6016505), (4895, 4156858), (8455, 2406602), (9790, 2078429), (16910, 1203301), (18601, 1093910), (37202, 546955), (93005, 218782), (109391, 186010)]