78840044

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 158865840

約数和(自身を除く): 80025796

約数列:

[1, 2, 4, 19, 23, 37, 38, 46, 53, 74, 76, 92, 106, 148, 212, 437, 529, 703, 851, 874, 1007, 1058, 1219, 1406, 1702, 1748, 1961, 2014, 2116, 2438, 2812, 3404, 3922, 4028, 4876, 7844, 10051, 16169, 19573, 20102, 23161, 28037, 32338, 37259, 39146, 40204, 45103, 46322, 56074, 64676, 74518, 78292, 90206, 92644, 112148, 149036, 180412, 371887, 532703, 743774, 856957, 1037369, 1065406, 1487548, 1713914, 2074738, 2130812, 3427828, 4149476, 19710011, 39420022, 78840044]

約数ペア:

[(1, 78840044), (2, 39420022), (4, 19710011), (19, 4149476), (23, 3427828), (37, 2130812), (38, 2074738), (46, 1713914), (53, 1487548), (74, 1065406), (76, 1037369), (92, 856957), (106, 743774), (148, 532703), (212, 371887), (437, 180412), (529, 149036), (703, 112148), (851, 92644), (874, 90206), (1007, 78292), (1058, 74518), (1219, 64676), (1406, 56074), (1702, 46322), (1748, 45103), (1961, 40204), (2014, 39146), (2116, 37259), (2438, 32338), (2812, 28037), (3404, 23161), (3922, 20102), (4028, 19573), (4876, 16169), (7844, 10051)]