20778264

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 61588800

約数和(自身を除く): 40810536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 79, 104, 117, 156, 158, 234, 237, 281, 312, 316, 468, 474, 562, 632, 711, 843, 936, 948, 1027, 1124, 1422, 1686, 1896, 2054, 2248, 2529, 2844, 3081, 3372, 3653, 4108, 5058, 5688, 6162, 6744, 7306, 8216, 9243, 10116, 10959, 12324, 14612, 18486, 20232, 21918, 22199, 24648, 29224, 32877, 36972, 43836, 44398, 65754, 66597, 73944, 87672, 88796, 131508, 133194, 177592, 199791, 263016, 266388, 288587, 399582, 532776, 577174, 799164, 865761, 1154348, 1598328, 1731522, 2308696, 2597283, 3463044, 5194566, 6926088, 10389132, 20778264]

約数ペア:

[(1, 20778264), (2, 10389132), (3, 6926088), (4, 5194566), (6, 3463044), (8, 2597283), (9, 2308696), (12, 1731522), (13, 1598328), (18, 1154348), (24, 865761), (26, 799164), (36, 577174), (39, 532776), (52, 399582), (72, 288587), (78, 266388), (79, 263016), (104, 199791), (117, 177592), (156, 133194), (158, 131508), (234, 88796), (237, 87672), (281, 73944), (312, 66597), (316, 65754), (468, 44398), (474, 43836), (562, 36972), (632, 32877), (711, 29224), (843, 24648), (936, 22199), (948, 21918), (1027, 20232), (1124, 18486), (1422, 14612), (1686, 12324), (1896, 10959), (2054, 10116), (2248, 9243), (2529, 8216), (2844, 7306), (3081, 6744), (3372, 6162), (3653, 5688), (4108, 5058)]