2831088640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17837}}^1$

素因数の和:17893

約数の個数: 88

約数和(自身を含む): 7010762112

約数和(自身を除く): 4179673472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 5120, 7936, 9920, 15872, 17837, 19840, 31744, 35674, 39680, 71348, 79360, 89185, 142696, 158720, 178370, 285392, 356740, 552947, 570784, 713480, 1105894, 1141568, 1426960, 2211788, 2283136, 2764735, 2853920, 4423576, 4566272, 5529470, 5707840, 8847152, 9132544, 11058940, 11415680, 17694304, 18265088, 22117880, 22831360, 35388608, 44235760, 45662720, 70777216, 88471520, 91325440, 141554432, 176943040, 283108864, 353886080, 566217728, 707772160, 1415544320, 2831088640]

約数ペア:

[(1, 2831088640), (2, 1415544320), (4, 707772160), (5, 566217728), (8, 353886080), (10, 283108864), (16, 176943040), (20, 141554432), (31, 91325440), (32, 88471520), (40, 70777216), (62, 45662720), (64, 44235760), (80, 35388608), (124, 22831360), (128, 22117880), (155, 18265088), (160, 17694304), (248, 11415680), (256, 11058940), (310, 9132544), (320, 8847152), (496, 5707840), (512, 5529470), (620, 4566272), (640, 4423576), (992, 2853920), (1024, 2764735), (1240, 2283136), (1280, 2211788), (1984, 1426960), (2480, 1141568), (2560, 1105894), (3968, 713480), (4960, 570784), (5120, 552947), (7936, 356740), (9920, 285392), (15872, 178370), (17837, 158720), (19840, 142696), (31744, 89185), (35674, 79360), (39680, 71348)]