19950028

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 21982772

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 79, 116, 158, 203, 311, 316, 406, 553, 622, 812, 1106, 1244, 2177, 2212, 2291, 4354, 4582, 8708, 9019, 9164, 16037, 18038, 24569, 32074, 36076, 49138, 63133, 64148, 98276, 126266, 171983, 252532, 343966, 687932, 712501, 1425002, 2850004, 4987507, 9975014, 19950028]

約数ペア:

[(1, 19950028), (2, 9975014), (4, 4987507), (7, 2850004), (14, 1425002), (28, 712501), (29, 687932), (58, 343966), (79, 252532), (116, 171983), (158, 126266), (203, 98276), (311, 64148), (316, 63133), (406, 49138), (553, 36076), (622, 32074), (812, 24569), (1106, 18038), (1244, 16037), (2177, 9164), (2212, 9019), (2291, 8708), (4354, 4582)]