20310290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2029}}^1$

素因数の和:2067

約数の個数: 64

約数和(自身を含む): 49109760

約数和(自身を除く): 28799470

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 2029, 4058, 5005, 10010, 10145, 14203, 20290, 22319, 26377, 28406, 44638, 52754, 71015, 111595, 131885, 142030, 156233, 184639, 223190, 263770, 290147, 312466, 369278, 580294, 781165, 923195, 1450735, 1562330, 1846390, 2031029, 2901470, 4062058, 10155145, 20310290]

約数ペア:

[(1, 20310290), (2, 10155145), (5, 4062058), (7, 2901470), (10, 2031029), (11, 1846390), (13, 1562330), (14, 1450735), (22, 923195), (26, 781165), (35, 580294), (55, 369278), (65, 312466), (70, 290147), (77, 263770), (91, 223190), (110, 184639), (130, 156233), (143, 142030), (154, 131885), (182, 111595), (286, 71015), (385, 52754), (455, 44638), (715, 28406), (770, 26377), (910, 22319), (1001, 20290), (1430, 14203), (2002, 10145), (2029, 10010), (4058, 5005)]