18927890

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 35271936

約数和(自身を除く): 16344046

約数列:

[1, 2, 5, 10, 53, 71, 106, 142, 265, 355, 503, 530, 710, 1006, 2515, 3763, 5030, 7526, 18815, 26659, 35713, 37630, 53318, 71426, 133295, 178565, 266590, 357130, 1892789, 3785578, 9463945, 18927890]

約数ペア:

[(1, 18927890), (2, 9463945), (5, 3785578), (10, 1892789), (53, 357130), (71, 266590), (106, 178565), (142, 133295), (265, 71426), (355, 53318), (503, 37630), (530, 35713), (710, 26659), (1006, 18815), (2515, 7526), (3763, 5030)]