18911270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 41817600

約数和(自身を除く): 22906330

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 59, 70, 95, 118, 133, 190, 241, 266, 295, 413, 482, 590, 665, 826, 1121, 1205, 1330, 1687, 2065, 2242, 2410, 3374, 4130, 4579, 5605, 7847, 8435, 9158, 11210, 14219, 15694, 16870, 22895, 28438, 32053, 39235, 45790, 64106, 71095, 78470, 99533, 142190, 160265, 199066, 270161, 320530, 497665, 540322, 995330, 1350805, 1891127, 2701610, 3782254, 9455635, 18911270]

約数ペア:

[(1, 18911270), (2, 9455635), (5, 3782254), (7, 2701610), (10, 1891127), (14, 1350805), (19, 995330), (35, 540322), (38, 497665), (59, 320530), (70, 270161), (95, 199066), (118, 160265), (133, 142190), (190, 99533), (241, 78470), (266, 71095), (295, 64106), (413, 45790), (482, 39235), (590, 32053), (665, 28438), (826, 22895), (1121, 16870), (1205, 15694), (1330, 14219), (1687, 11210), (2065, 9158), (2242, 8435), (2410, 7847), (3374, 5605), (4130, 4579)]