71869840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{128339}}^1$

素因数の和:128359

約数の個数: 40

約数和(自身を含む): 190969920

約数和(自身を除く): 119100080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 128339, 256678, 513356, 641695, 898373, 1026712, 1283390, 1796746, 2053424, 2566780, 3593492, 4491865, 5133560, 7186984, 8983730, 10267120, 14373968, 17967460, 35934920, 71869840]

約数ペア:

[(1, 71869840), (2, 35934920), (4, 17967460), (5, 14373968), (7, 10267120), (8, 8983730), (10, 7186984), (14, 5133560), (16, 4491865), (20, 3593492), (28, 2566780), (35, 2053424), (40, 1796746), (56, 1283390), (70, 1026712), (80, 898373), (112, 641695), (140, 513356), (280, 256678), (560, 128339)]