20067740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 53512704

約数和(自身を除く): 33444964

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 83, 110, 140, 154, 157, 166, 220, 308, 314, 332, 385, 415, 581, 628, 770, 785, 830, 913, 1099, 1162, 1540, 1570, 1660, 1727, 1826, 2198, 2324, 2905, 3140, 3454, 3652, 4396, 4565, 5495, 5810, 6391, 6908, 8635, 9130, 10990, 11620, 12089, 12782, 13031, 17270, 18260, 21980, 24178, 25564, 26062, 31955, 34540, 48356, 52124, 60445, 63910, 65155, 91217, 120890, 127820, 130310, 143341, 182434, 241780, 260620, 286682, 364868, 456085, 573364, 716705, 912170, 1003387, 1433410, 1824340, 2006774, 2866820, 4013548, 5016935, 10033870, 20067740]

約数ペア:

[(1, 20067740), (2, 10033870), (4, 5016935), (5, 4013548), (7, 2866820), (10, 2006774), (11, 1824340), (14, 1433410), (20, 1003387), (22, 912170), (28, 716705), (35, 573364), (44, 456085), (55, 364868), (70, 286682), (77, 260620), (83, 241780), (110, 182434), (140, 143341), (154, 130310), (157, 127820), (166, 120890), (220, 91217), (308, 65155), (314, 63910), (332, 60445), (385, 52124), (415, 48356), (581, 34540), (628, 31955), (770, 26062), (785, 25564), (830, 24178), (913, 21980), (1099, 18260), (1162, 17270), (1540, 13031), (1570, 12782), (1660, 12089), (1727, 11620), (1826, 10990), (2198, 9130), (2324, 8635), (2905, 6908), (3140, 6391), (3454, 5810), (3652, 5495), (4396, 4565)]