4005880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 9836640

約数和(自身を除く): 5830760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 137, 170, 172, 215, 274, 340, 344, 430, 548, 680, 685, 731, 860, 1096, 1370, 1462, 1720, 2329, 2740, 2924, 3655, 4658, 5480, 5848, 5891, 7310, 9316, 11645, 11782, 14620, 18632, 23290, 23564, 29240, 29455, 46580, 47128, 58910, 93160, 100147, 117820, 200294, 235640, 400588, 500735, 801176, 1001470, 2002940, 4005880]

約数ペア:

[(1, 4005880), (2, 2002940), (4, 1001470), (5, 801176), (8, 500735), (10, 400588), (17, 235640), (20, 200294), (34, 117820), (40, 100147), (43, 93160), (68, 58910), (85, 47128), (86, 46580), (136, 29455), (137, 29240), (170, 23564), (172, 23290), (215, 18632), (274, 14620), (340, 11782), (344, 11645), (430, 9316), (548, 7310), (680, 5891), (685, 5848), (731, 5480), (860, 4658), (1096, 3655), (1370, 2924), (1462, 2740), (1720, 2329)]