642000550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{10799}}^1$

素因数の和:10881

約数の個数: 48

約数和(自身を含む): 1265544000

約数和(自身を除く): 623543450

約数列:

[1, 2, 5, 10, 25, 29, 41, 50, 58, 82, 145, 205, 290, 410, 725, 1025, 1189, 1450, 2050, 2378, 5945, 10799, 11890, 21598, 29725, 53995, 59450, 107990, 269975, 313171, 442759, 539950, 626342, 885518, 1565855, 2213795, 3131710, 4427590, 7829275, 11068975, 12840011, 15658550, 22137950, 25680022, 64200055, 128400110, 321000275, 642000550]

約数ペア:

[(1, 642000550), (2, 321000275), (5, 128400110), (10, 64200055), (25, 25680022), (29, 22137950), (41, 15658550), (50, 12840011), (58, 11068975), (82, 7829275), (145, 4427590), (205, 3131710), (290, 2213795), (410, 1565855), (725, 885518), (1025, 626342), (1189, 539950), (1450, 442759), (2050, 313171), (2378, 269975), (5945, 107990), (10799, 59450), (11890, 53995), (21598, 29725)]