26327080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 64365840

約数和(自身を除く): 38038760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 197, 257, 260, 394, 514, 520, 788, 985, 1028, 1285, 1576, 1970, 2056, 2561, 2570, 3341, 3940, 5122, 5140, 6682, 7880, 10244, 10280, 12805, 13364, 16705, 20488, 25610, 26728, 33410, 50629, 51220, 66820, 101258, 102440, 133640, 202516, 253145, 405032, 506290, 658177, 1012580, 1316354, 2025160, 2632708, 3290885, 5265416, 6581770, 13163540, 26327080]

約数ペア:

[(1, 26327080), (2, 13163540), (4, 6581770), (5, 5265416), (8, 3290885), (10, 2632708), (13, 2025160), (20, 1316354), (26, 1012580), (40, 658177), (52, 506290), (65, 405032), (104, 253145), (130, 202516), (197, 133640), (257, 102440), (260, 101258), (394, 66820), (514, 51220), (520, 50629), (788, 33410), (985, 26728), (1028, 25610), (1285, 20488), (1576, 16705), (1970, 13364), (2056, 12805), (2561, 10280), (2570, 10244), (3341, 7880), (3940, 6682), (5122, 5140)]