19979968365

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:452

約数の個数: 192

約数和(自身を含む): 41810895360

約数和(自身を除く): 21830926995

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 61, 63, 105, 111, 157, 179, 183, 185, 259, 305, 315, 333, 427, 471, 537, 549, 555, 777, 785, 895, 915, 1099, 1253, 1281, 1295, 1413, 1611, 1665, 2135, 2257, 2331, 2355, 2685, 2745, 3297, 3759, 3843, 3885, 5495, 5809, 6265, 6405, 6623, 6771, 7065, 8055, 9577, 9891, 10919, 11277, 11285, 11655, 15799, 16485, 17427, 18795, 19215, 19869, 20313, 28103, 28731, 29045, 32757, 33115, 33855, 40663, 46361, 47397, 47885, 49455, 52281, 54595, 56385, 59607, 67039, 76433, 78995, 84309, 86193, 87135, 98271, 99345, 101565, 121989, 139083, 140515, 142191, 143655, 163785, 196721, 201117, 203315, 229299, 231805, 236985, 252927, 261405, 298035, 335195, 354349, 365967, 382165, 404003, 417249, 421545, 430965, 491355, 590163, 603351, 609945, 687897, 695415, 710955, 983605, 1005585, 1039811, 1063047, 1146495, 1212009, 1264635, 1714283, 1770489, 1771745, 1829835, 2020015, 2086245, 2480443, 2828021, 2950815, 3016755, 3119433, 3189141, 3439485, 3636027, 5142849, 5199055, 5315235, 6060045, 7278677, 7441329, 8484063, 8571415, 8852445, 9358299, 11999981, 12402215, 14140105, 15428547, 15597165, 15945705, 18180135, 21836031, 22323987, 25452189, 25714245, 35999943, 36393385, 37206645, 42420315, 46791495, 59999905, 63428471, 65508093, 77142735, 107999829, 109180155, 111619935, 127260945, 179999715, 190285413, 317142355, 327540465, 443999297, 539999145, 570856239, 951427065, 1331997891, 2219996485, 2854281195, 3995993673, 6659989455, 19979968365]

約数ペア:

[(1, 19979968365), (3, 6659989455), (5, 3995993673), (7, 2854281195), (9, 2219996485), (15, 1331997891), (21, 951427065), (35, 570856239), (37, 539999145), (45, 443999297), (61, 327540465), (63, 317142355), (105, 190285413), (111, 179999715), (157, 127260945), (179, 111619935), (183, 109180155), (185, 107999829), (259, 77142735), (305, 65508093), (315, 63428471), (333, 59999905), (427, 46791495), (471, 42420315), (537, 37206645), (549, 36393385), (555, 35999943), (777, 25714245), (785, 25452189), (895, 22323987), (915, 21836031), (1099, 18180135), (1253, 15945705), (1281, 15597165), (1295, 15428547), (1413, 14140105), (1611, 12402215), (1665, 11999981), (2135, 9358299), (2257, 8852445), (2331, 8571415), (2355, 8484063), (2685, 7441329), (2745, 7278677), (3297, 6060045), (3759, 5315235), (3843, 5199055), (3885, 5142849), (5495, 3636027), (5809, 3439485), (6265, 3189141), (6405, 3119433), (6623, 3016755), (6771, 2950815), (7065, 2828021), (8055, 2480443), (9577, 2086245), (9891, 2020015), (10919, 1829835), (11277, 1771745), (11285, 1770489), (11655, 1714283), (15799, 1264635), (16485, 1212009), (17427, 1146495), (18795, 1063047), (19215, 1039811), (19869, 1005585), (20313, 983605), (28103, 710955), (28731, 695415), (29045, 687897), (32757, 609945), (33115, 603351), (33855, 590163), (40663, 491355), (46361, 430965), (47397, 421545), (47885, 417249), (49455, 404003), (52281, 382165), (54595, 365967), (56385, 354349), (59607, 335195), (67039, 298035), (76433, 261405), (78995, 252927), (84309, 236985), (86193, 231805), (87135, 229299), (98271, 203315), (99345, 201117), (101565, 196721), (121989, 163785), (139083, 143655), (140515, 142191)]