20218085300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{931709}}^1$

素因数の和:931761

約数の個数: 72

約数和(自身を含む): 51758353920

約数和(自身を除く): 31540268620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 1085, 1550, 2170, 3100, 4340, 5425, 10850, 21700, 931709, 1863418, 3726836, 4658545, 6521963, 9317090, 13043926, 18634180, 23292725, 26087852, 28882979, 32609815, 46585450, 57765958, 65219630, 93170900, 115531916, 130439260, 144414895, 163049075, 202180853, 288829790, 326098150, 404361706, 577659580, 652196300, 722074475, 808723412, 1010904265, 1444148950, 2021808530, 2888297900, 4043617060, 5054521325, 10109042650, 20218085300]

約数ペア:

[(1, 20218085300), (2, 10109042650), (4, 5054521325), (5, 4043617060), (7, 2888297900), (10, 2021808530), (14, 1444148950), (20, 1010904265), (25, 808723412), (28, 722074475), (31, 652196300), (35, 577659580), (50, 404361706), (62, 326098150), (70, 288829790), (100, 202180853), (124, 163049075), (140, 144414895), (155, 130439260), (175, 115531916), (217, 93170900), (310, 65219630), (350, 57765958), (434, 46585450), (620, 32609815), (700, 28882979), (775, 26087852), (868, 23292725), (1085, 18634180), (1550, 13043926), (2170, 9317090), (3100, 6521963), (4340, 4658545), (5425, 3726836), (10850, 1863418), (21700, 931709)]