20649291292

素因数分解:

$2^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:612

約数の個数: 144

約数和(自身を含む): 44154361440

約数和(自身を除く): 23505070148

約数列:

[1, 2, 4, 7, 14, 28, 49, 59, 61, 73, 98, 118, 122, 146, 196, 236, 244, 292, 401, 413, 427, 511, 802, 826, 854, 1022, 1604, 1652, 1708, 2044, 2807, 2891, 2989, 3577, 3599, 4307, 4453, 5614, 5782, 5978, 7154, 7198, 8614, 8906, 11228, 11564, 11956, 14308, 14396, 17228, 17812, 19649, 23659, 24461, 25193, 29273, 30149, 31171, 39298, 47318, 48922, 50386, 58546, 60298, 62342, 78596, 94636, 97844, 100772, 117092, 120596, 124684, 165613, 171227, 176351, 204911, 211043, 218197, 262727, 331226, 342454, 352702, 409822, 422086, 436394, 525454, 662452, 684908, 705404, 819644, 844172, 872788, 1050908, 1159291, 1198589, 1434377, 1443199, 1727107, 1785653, 1839089, 2318582, 2397178, 2868754, 2886398, 3454214, 3571306, 3678178, 4637164, 4794356, 5737508, 5772796, 6908428, 7142612, 7356356, 10102393, 12089749, 12499571, 12873623, 20204786, 24179498, 24999142, 25747246, 40409572, 48358996, 49998284, 51494492, 70716751, 84628243, 87496997, 105353527, 141433502, 169256486, 174993994, 210707054, 282867004, 338512972, 349987988, 421414108, 737474689, 1474949378, 2949898756, 5162322823, 10324645646, 20649291292]

約数ペア:

[(1, 20649291292), (2, 10324645646), (4, 5162322823), (7, 2949898756), (14, 1474949378), (28, 737474689), (49, 421414108), (59, 349987988), (61, 338512972), (73, 282867004), (98, 210707054), (118, 174993994), (122, 169256486), (146, 141433502), (196, 105353527), (236, 87496997), (244, 84628243), (292, 70716751), (401, 51494492), (413, 49998284), (427, 48358996), (511, 40409572), (802, 25747246), (826, 24999142), (854, 24179498), (1022, 20204786), (1604, 12873623), (1652, 12499571), (1708, 12089749), (2044, 10102393), (2807, 7356356), (2891, 7142612), (2989, 6908428), (3577, 5772796), (3599, 5737508), (4307, 4794356), (4453, 4637164), (5614, 3678178), (5782, 3571306), (5978, 3454214), (7154, 2886398), (7198, 2868754), (8614, 2397178), (8906, 2318582), (11228, 1839089), (11564, 1785653), (11956, 1727107), (14308, 1443199), (14396, 1434377), (17228, 1198589), (17812, 1159291), (19649, 1050908), (23659, 872788), (24461, 844172), (25193, 819644), (29273, 705404), (30149, 684908), (31171, 662452), (39298, 525454), (47318, 436394), (48922, 422086), (50386, 409822), (58546, 352702), (60298, 342454), (62342, 331226), (78596, 262727), (94636, 218197), (97844, 211043), (100772, 204911), (117092, 176351), (120596, 171227), (124684, 165613)]