20120808286

素因数分解:

$2^1\times {\mathrm{17}}^3\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 32905543680

約数和(自身を除く): 12784735394

約数列:

[1, 2, 17, 34, 71, 142, 151, 191, 289, 302, 382, 578, 1207, 2414, 2567, 3247, 4913, 5134, 6494, 9826, 10721, 13561, 20519, 21442, 27122, 28841, 41038, 43639, 55199, 57682, 87278, 110398, 182257, 230537, 348823, 364514, 461074, 490297, 697646, 741863, 938383, 980594, 1483726, 1876766, 2047711, 3098369, 3919129, 4095422, 6196738, 7838258, 8335049, 16670098, 34811087, 52672273, 66625193, 69622174, 105344546, 133250386, 141695833, 283391666, 591788479, 1183576958, 10060404143, 20120808286]

約数ペア:

[(1, 20120808286), (2, 10060404143), (17, 1183576958), (34, 591788479), (71, 283391666), (142, 141695833), (151, 133250386), (191, 105344546), (289, 69622174), (302, 66625193), (382, 52672273), (578, 34811087), (1207, 16670098), (2414, 8335049), (2567, 7838258), (3247, 6196738), (4913, 4095422), (5134, 3919129), (6494, 3098369), (9826, 2047711), (10721, 1876766), (13561, 1483726), (20519, 980594), (21442, 938383), (27122, 741863), (28841, 697646), (41038, 490297), (43639, 461074), (55199, 364514), (57682, 348823), (87278, 230537), (110398, 182257)]