81630640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11213}}^1$

素因数の和:11246

約数の個数: 80

約数和(自身を含む): 233610048

約数和(自身を除く): 151979408

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 11213, 22426, 44852, 56065, 78491, 89704, 112130, 145769, 156982, 179408, 224260, 291538, 313964, 392455, 448520, 583076, 627928, 728845, 784910, 897040, 1020383, 1166152, 1255856, 1457690, 1569820, 2040766, 2332304, 2915380, 3139640, 4081532, 5101915, 5830760, 6279280, 8163064, 10203830, 11661520, 16326128, 20407660, 40815320, 81630640]

約数ペア:

[(1, 81630640), (2, 40815320), (4, 20407660), (5, 16326128), (7, 11661520), (8, 10203830), (10, 8163064), (13, 6279280), (14, 5830760), (16, 5101915), (20, 4081532), (26, 3139640), (28, 2915380), (35, 2332304), (40, 2040766), (52, 1569820), (56, 1457690), (65, 1255856), (70, 1166152), (80, 1020383), (91, 897040), (104, 784910), (112, 728845), (130, 627928), (140, 583076), (182, 448520), (208, 392455), (260, 313964), (280, 291538), (364, 224260), (455, 179408), (520, 156982), (560, 145769), (728, 112130), (910, 89704), (1040, 78491), (1456, 56065), (1820, 44852), (3640, 22426), (7280, 11213)]