19401452

素因数分解:

$2^2\times 7^3\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:283

約数の個数: 48

約数和(自身を含む): 40320000

約数和(自身を除く): 20918548

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 179, 196, 316, 343, 358, 553, 686, 716, 1106, 1253, 1372, 2212, 2506, 3871, 5012, 7742, 8771, 14141, 15484, 17542, 27097, 28282, 35084, 54194, 56564, 61397, 98987, 108388, 122794, 197974, 245588, 395948, 692909, 1385818, 2771636, 4850363, 9700726, 19401452]

約数ペア:

[(1, 19401452), (2, 9700726), (4, 4850363), (7, 2771636), (14, 1385818), (28, 692909), (49, 395948), (79, 245588), (98, 197974), (158, 122794), (179, 108388), (196, 98987), (316, 61397), (343, 56564), (358, 54194), (553, 35084), (686, 28282), (716, 27097), (1106, 17542), (1253, 15484), (1372, 14141), (2212, 8771), (2506, 7742), (3871, 5012)]