7802906020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{3109}}^1$

素因数の和:3342

約数の個数: 144

約数和(自身を含む): 20638482480

約数和(自身を除く): 12835576460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 197, 245, 260, 364, 394, 455, 490, 637, 788, 910, 980, 985, 1274, 1379, 1820, 1970, 2548, 2561, 2758, 3109, 3185, 3940, 5122, 5516, 6218, 6370, 6895, 9653, 10244, 12436, 12740, 12805, 13790, 15545, 17927, 19306, 21763, 25610, 27580, 31090, 35854, 38612, 40417, 43526, 48265, 51220, 62180, 71708, 80834, 87052, 89635, 96530, 108815, 125489, 152341, 161668, 179270, 193060, 202085, 217630, 250978, 282919, 304682, 358540, 404170, 435260, 501956, 565838, 609364, 612473, 627445, 761705, 808340, 1131676, 1224946, 1254890, 1414595, 1523410, 1980433, 2449892, 2509780, 2829190, 3046820, 3062365, 3960866, 4287311, 5658380, 6124730, 7921732, 7962149, 8574622, 9902165, 12249460, 15924298, 17149244, 19804330, 21436555, 30011177, 31848596, 39608660, 39810745, 42873110, 55735043, 60022354, 79621490, 85746220, 111470086, 120044708, 150055885, 159242980, 222940172, 278675215, 300111770, 390145301, 557350430, 600223540, 780290602, 1114700860, 1560581204, 1950726505, 3901453010, 7802906020]

約数ペア:

[(1, 7802906020), (2, 3901453010), (4, 1950726505), (5, 1560581204), (7, 1114700860), (10, 780290602), (13, 600223540), (14, 557350430), (20, 390145301), (26, 300111770), (28, 278675215), (35, 222940172), (49, 159242980), (52, 150055885), (65, 120044708), (70, 111470086), (91, 85746220), (98, 79621490), (130, 60022354), (140, 55735043), (182, 42873110), (196, 39810745), (197, 39608660), (245, 31848596), (260, 30011177), (364, 21436555), (394, 19804330), (455, 17149244), (490, 15924298), (637, 12249460), (788, 9902165), (910, 8574622), (980, 7962149), (985, 7921732), (1274, 6124730), (1379, 5658380), (1820, 4287311), (1970, 3960866), (2548, 3062365), (2561, 3046820), (2758, 2829190), (3109, 2509780), (3185, 2449892), (3940, 1980433), (5122, 1523410), (5516, 1414595), (6218, 1254890), (6370, 1224946), (6895, 1131676), (9653, 808340), (10244, 761705), (12436, 627445), (12740, 612473), (12805, 609364), (13790, 565838), (15545, 501956), (17927, 435260), (19306, 404170), (21763, 358540), (25610, 304682), (27580, 282919), (31090, 250978), (35854, 217630), (38612, 202085), (40417, 193060), (43526, 179270), (48265, 161668), (51220, 152341), (62180, 125489), (71708, 108815), (80834, 96530), (87052, 89635)]