28187710

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 54704160

約数和(自身を除く): 26516450

約数列:

[1, 2, 5, 10, 29, 37, 58, 71, 74, 142, 145, 185, 290, 355, 370, 710, 1073, 1369, 2059, 2146, 2627, 2738, 4118, 5254, 5365, 6845, 10295, 10730, 13135, 13690, 20590, 26270, 39701, 76183, 79402, 97199, 152366, 194398, 198505, 380915, 397010, 485995, 761830, 971990, 2818771, 5637542, 14093855, 28187710]

約数ペア:

[(1, 28187710), (2, 14093855), (5, 5637542), (10, 2818771), (29, 971990), (37, 761830), (58, 485995), (71, 397010), (74, 380915), (142, 198505), (145, 194398), (185, 152366), (290, 97199), (355, 79402), (370, 76183), (710, 39701), (1073, 26270), (1369, 20590), (2059, 13690), (2146, 13135), (2627, 10730), (2738, 10295), (4118, 6845), (5254, 5365)]