19866350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1831}}^1$

素因数の和:1881

約数の個数: 48

約数和(自身を含む): 43616256

約数和(自身を除く): 23749906

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 1831, 2170, 3662, 5425, 9155, 10850, 12817, 18310, 25634, 45775, 56761, 64085, 91550, 113522, 128170, 283805, 320425, 397327, 567610, 640850, 794654, 1419025, 1986635, 2838050, 3973270, 9933175, 19866350]

約数ペア:

[(1, 19866350), (2, 9933175), (5, 3973270), (7, 2838050), (10, 1986635), (14, 1419025), (25, 794654), (31, 640850), (35, 567610), (50, 397327), (62, 320425), (70, 283805), (155, 128170), (175, 113522), (217, 91550), (310, 64085), (350, 56761), (434, 45775), (775, 25634), (1085, 18310), (1550, 12817), (1831, 10850), (2170, 9155), (3662, 5425)]