20396770160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1\times {\mathrm{727}}^1$

素因数の和:1315

約数の個数: 160

約数和(自身を含む): 52207908480

約数和(自身を除く): 31811138320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 509, 520, 530, 689, 727, 848, 1018, 1040, 1060, 1378, 1454, 2036, 2120, 2545, 2756, 2908, 3445, 3635, 4072, 4240, 5090, 5512, 5816, 6617, 6890, 7270, 8144, 9451, 10180, 11024, 11632, 13234, 13780, 14540, 18902, 20360, 26468, 26977, 27560, 29080, 33085, 37804, 38531, 40720, 47255, 52936, 53954, 55120, 58160, 66170, 75608, 77062, 94510, 105872, 107908, 132340, 134885, 151216, 154124, 189020, 192655, 215816, 264680, 269770, 308248, 350701, 370043, 378040, 385310, 431632, 500903, 529360, 539540, 616496, 701402, 740086, 756080, 770620, 1001806, 1079080, 1402804, 1480172, 1541240, 1753505, 1850215, 2003612, 2158160, 2504515, 2805608, 2960344, 3082480, 3507010, 3700430, 4007224, 4810559, 5009030, 5611216, 5920688, 7014020, 7400860, 8014448, 9621118, 10018060, 14028040, 14801720, 19242236, 19612279, 20036120, 24052795, 28056080, 29603440, 38484472, 39224558, 40072240, 48105590, 76968944, 78449116, 96211180, 98061395, 156898232, 192422360, 196122790, 254959627, 313796464, 384844720, 392245580, 509919254, 784491160, 1019838508, 1274798135, 1568982320, 2039677016, 2549596270, 4079354032, 5099192540, 10198385080, 20396770160]

約数ペア:

[(1, 20396770160), (2, 10198385080), (4, 5099192540), (5, 4079354032), (8, 2549596270), (10, 2039677016), (13, 1568982320), (16, 1274798135), (20, 1019838508), (26, 784491160), (40, 509919254), (52, 392245580), (53, 384844720), (65, 313796464), (80, 254959627), (104, 196122790), (106, 192422360), (130, 156898232), (208, 98061395), (212, 96211180), (260, 78449116), (265, 76968944), (424, 48105590), (509, 40072240), (520, 39224558), (530, 38484472), (689, 29603440), (727, 28056080), (848, 24052795), (1018, 20036120), (1040, 19612279), (1060, 19242236), (1378, 14801720), (1454, 14028040), (2036, 10018060), (2120, 9621118), (2545, 8014448), (2756, 7400860), (2908, 7014020), (3445, 5920688), (3635, 5611216), (4072, 5009030), (4240, 4810559), (5090, 4007224), (5512, 3700430), (5816, 3507010), (6617, 3082480), (6890, 2960344), (7270, 2805608), (8144, 2504515), (9451, 2158160), (10180, 2003612), (11024, 1850215), (11632, 1753505), (13234, 1541240), (13780, 1480172), (14540, 1402804), (18902, 1079080), (20360, 1001806), (26468, 770620), (26977, 756080), (27560, 740086), (29080, 701402), (33085, 616496), (37804, 539540), (38531, 529360), (40720, 500903), (47255, 431632), (52936, 385310), (53954, 378040), (55120, 370043), (58160, 350701), (66170, 308248), (75608, 269770), (77062, 264680), (94510, 215816), (105872, 192655), (107908, 189020), (132340, 154124), (134885, 151216)]