209288380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 516096000

約数和(自身を除く): 306807620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 127, 140, 149, 158, 254, 298, 316, 395, 508, 553, 596, 635, 745, 790, 889, 1043, 1106, 1270, 1490, 1580, 1778, 2086, 2212, 2540, 2765, 2980, 3556, 4172, 4445, 5215, 5530, 8890, 10033, 10430, 11060, 11771, 17780, 18923, 20066, 20860, 23542, 37846, 40132, 47084, 50165, 58855, 70231, 75692, 82397, 94615, 100330, 117710, 132461, 140462, 164794, 189230, 200660, 235420, 264922, 280924, 329588, 351155, 378460, 411985, 529844, 662305, 702310, 823970, 1324610, 1404620, 1494917, 1647940, 2649220, 2989834, 5979668, 7474585, 10464419, 14949170, 20928838, 29898340, 41857676, 52322095, 104644190, 209288380]

約数ペア:

[(1, 209288380), (2, 104644190), (4, 52322095), (5, 41857676), (7, 29898340), (10, 20928838), (14, 14949170), (20, 10464419), (28, 7474585), (35, 5979668), (70, 2989834), (79, 2649220), (127, 1647940), (140, 1494917), (149, 1404620), (158, 1324610), (254, 823970), (298, 702310), (316, 662305), (395, 529844), (508, 411985), (553, 378460), (596, 351155), (635, 329588), (745, 280924), (790, 264922), (889, 235420), (1043, 200660), (1106, 189230), (1270, 164794), (1490, 140462), (1580, 132461), (1778, 117710), (2086, 100330), (2212, 94615), (2540, 82397), (2765, 75692), (2980, 70231), (3556, 58855), (4172, 50165), (4445, 47084), (5215, 40132), (5530, 37846), (8890, 23542), (10033, 20860), (10430, 20066), (11060, 18923), (11771, 17780)]