20194305008

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{419}}^1\times {\mathrm{64091}}^1$

素因数の和:64565

約数の個数: 40

約数和(自身を含む): 40054936320

約数和(自身を除く): 19860631312

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 419, 752, 838, 1676, 3352, 6704, 19693, 39386, 64091, 78772, 128182, 157544, 256364, 315088, 512728, 1025456, 3012277, 6024554, 12049108, 24098216, 26854129, 48196432, 53708258, 107416516, 214833032, 429666064, 1262144063, 2524288126, 5048576252, 10097152504, 20194305008]

約数ペア:

[(1, 20194305008), (2, 10097152504), (4, 5048576252), (8, 2524288126), (16, 1262144063), (47, 429666064), (94, 214833032), (188, 107416516), (376, 53708258), (419, 48196432), (752, 26854129), (838, 24098216), (1676, 12049108), (3352, 6024554), (6704, 3012277), (19693, 1025456), (39386, 512728), (64091, 315088), (78772, 256364), (128182, 157544)]