20199266975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{420599}}^1$

素因数の和:420739

約数の個数: 24

約数和(自身を含む): 26755207200

約数和(自身を除く): 6555940225

約数列:

[1, 5, 17, 25, 85, 113, 425, 565, 1921, 2825, 9605, 48025, 420599, 2102995, 7150183, 10514975, 35750915, 47527687, 178754575, 237638435, 807970679, 1188192175, 4039853395, 20199266975]

約数ペア:

[(1, 20199266975), (5, 4039853395), (17, 1188192175), (25, 807970679), (85, 237638435), (113, 178754575), (425, 47527687), (565, 35750915), (1921, 10514975), (2825, 7150183), (9605, 2102995), (48025, 420599)]