18992220520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{37537}}^1$

素因数の和:37707

約数の個数: 128

約数和(自身を含む): 52973625600

約数和(自身を除く): 33981405080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 139, 140, 182, 260, 278, 280, 364, 455, 520, 556, 695, 728, 910, 973, 1112, 1390, 1807, 1820, 1946, 2780, 3614, 3640, 3892, 4865, 5560, 7228, 7784, 9035, 9730, 12649, 14456, 18070, 19460, 25298, 36140, 37537, 38920, 50596, 63245, 72280, 75074, 101192, 126490, 150148, 187685, 252980, 262759, 300296, 375370, 487981, 505960, 525518, 750740, 975962, 1051036, 1313795, 1501480, 1951924, 2102072, 2439905, 2627590, 3415867, 3903848, 4879810, 5217643, 5255180, 6831734, 9759620, 10435286, 10510360, 13663468, 17079335, 19519240, 20870572, 26088215, 27326936, 34158670, 36523501, 41741144, 52176430, 67829359, 68317340, 73047002, 104352860, 135658718, 136634680, 146094004, 182617505, 208705720, 271317436, 292188008, 339146795, 365235010, 474805513, 542634872, 678293590, 730470020, 949611026, 1356587180, 1460940040, 1899222052, 2374027565, 2713174360, 3798444104, 4748055130, 9496110260, 18992220520]

約数ペア:

[(1, 18992220520), (2, 9496110260), (4, 4748055130), (5, 3798444104), (7, 2713174360), (8, 2374027565), (10, 1899222052), (13, 1460940040), (14, 1356587180), (20, 949611026), (26, 730470020), (28, 678293590), (35, 542634872), (40, 474805513), (52, 365235010), (56, 339146795), (65, 292188008), (70, 271317436), (91, 208705720), (104, 182617505), (130, 146094004), (139, 136634680), (140, 135658718), (182, 104352860), (260, 73047002), (278, 68317340), (280, 67829359), (364, 52176430), (455, 41741144), (520, 36523501), (556, 34158670), (695, 27326936), (728, 26088215), (910, 20870572), (973, 19519240), (1112, 17079335), (1390, 13663468), (1807, 10510360), (1820, 10435286), (1946, 9759620), (2780, 6831734), (3614, 5255180), (3640, 5217643), (3892, 4879810), (4865, 3903848), (5560, 3415867), (7228, 2627590), (7784, 2439905), (9035, 2102072), (9730, 1951924), (12649, 1501480), (14456, 1313795), (18070, 1051036), (19460, 975962), (25298, 750740), (36140, 525518), (37537, 505960), (38920, 487981), (50596, 375370), (63245, 300296), (72280, 262759), (75074, 252980), (101192, 187685), (126490, 150148)]