1380491420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{227}}^1\times {\mathrm{359}}^1$

素因数の和:624

約数の個数: 144

約数和(自身を含む): 3667991040

約数和(自身を除く): 2287499620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 227, 242, 308, 359, 385, 454, 484, 605, 718, 770, 847, 908, 1135, 1210, 1436, 1540, 1589, 1694, 1795, 2270, 2420, 2497, 2513, 3178, 3388, 3590, 3949, 4235, 4540, 4994, 5026, 6356, 7180, 7898, 7945, 8470, 9988, 10052, 12485, 12565, 15796, 15890, 16940, 17479, 19745, 24970, 25130, 27467, 27643, 31780, 34958, 39490, 43439, 49940, 50260, 54934, 55286, 69916, 78980, 81493, 86878, 87395, 109868, 110572, 137335, 138215, 162986, 173756, 174790, 192269, 217195, 274670, 276430, 304073, 325972, 349580, 384538, 407465, 434390, 549340, 552860, 570451, 608146, 769076, 814930, 868780, 896423, 961345, 1140902, 1216292, 1520365, 1629860, 1792846, 1922690, 2281804, 2852255, 3040730, 3585692, 3845380, 4482115, 5704510, 6081460, 6274961, 8964230, 9860653, 11409020, 12549922, 17928460, 19721306, 25099844, 31374805, 39442612, 49303265, 62749610, 69024571, 98606530, 125499220, 138049142, 197213060, 276098284, 345122855, 690245710, 1380491420]

約数ペア:

[(1, 1380491420), (2, 690245710), (4, 345122855), (5, 276098284), (7, 197213060), (10, 138049142), (11, 125499220), (14, 98606530), (20, 69024571), (22, 62749610), (28, 49303265), (35, 39442612), (44, 31374805), (55, 25099844), (70, 19721306), (77, 17928460), (110, 12549922), (121, 11409020), (140, 9860653), (154, 8964230), (220, 6274961), (227, 6081460), (242, 5704510), (308, 4482115), (359, 3845380), (385, 3585692), (454, 3040730), (484, 2852255), (605, 2281804), (718, 1922690), (770, 1792846), (847, 1629860), (908, 1520365), (1135, 1216292), (1210, 1140902), (1436, 961345), (1540, 896423), (1589, 868780), (1694, 814930), (1795, 769076), (2270, 608146), (2420, 570451), (2497, 552860), (2513, 549340), (3178, 434390), (3388, 407465), (3590, 384538), (3949, 349580), (4235, 325972), (4540, 304073), (4994, 276430), (5026, 274670), (6356, 217195), (7180, 192269), (7898, 174790), (7945, 173756), (8470, 162986), (9988, 138215), (10052, 137335), (12485, 110572), (12565, 109868), (15796, 87395), (15890, 86878), (16940, 81493), (17479, 78980), (19745, 69916), (24970, 55286), (25130, 54934), (27467, 50260), (27643, 49940), (31780, 43439), (34958, 39490)]