40515440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1019}}^1$

素因数の和:1110

約数の個数: 80

約数和(自身を含む): 109278720

約数和(自身を除く): 68763280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1019, 1136, 1420, 1988, 2038, 2485, 2840, 3976, 4076, 4970, 5095, 5680, 7133, 7952, 8152, 9940, 10190, 14266, 16304, 19880, 20380, 28532, 35665, 39760, 40760, 57064, 71330, 72349, 81520, 114128, 142660, 144698, 285320, 289396, 361745, 506443, 570640, 578792, 723490, 1012886, 1157584, 1446980, 2025772, 2532215, 2893960, 4051544, 5064430, 5787920, 8103088, 10128860, 20257720, 40515440]

約数ペア:

[(1, 40515440), (2, 20257720), (4, 10128860), (5, 8103088), (7, 5787920), (8, 5064430), (10, 4051544), (14, 2893960), (16, 2532215), (20, 2025772), (28, 1446980), (35, 1157584), (40, 1012886), (56, 723490), (70, 578792), (71, 570640), (80, 506443), (112, 361745), (140, 289396), (142, 285320), (280, 144698), (284, 142660), (355, 114128), (497, 81520), (560, 72349), (568, 71330), (710, 57064), (994, 40760), (1019, 39760), (1136, 35665), (1420, 28532), (1988, 20380), (2038, 19880), (2485, 16304), (2840, 14266), (3976, 10190), (4076, 9940), (4970, 8152), (5095, 7952), (5680, 7133)]