197250790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{9011}}^1$

素因数の和:9228

約数の個数: 32

約数和(自身を含む): 389318400

約数和(自身を除く): 192067610

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 995, 1990, 2189, 4378, 9011, 10945, 18022, 21890, 45055, 90110, 99121, 198242, 495605, 991210, 1793189, 3586378, 8965945, 17931890, 19725079, 39450158, 98625395, 197250790]

約数ペア:

[(1, 197250790), (2, 98625395), (5, 39450158), (10, 19725079), (11, 17931890), (22, 8965945), (55, 3586378), (110, 1793189), (199, 991210), (398, 495605), (995, 198242), (1990, 99121), (2189, 90110), (4378, 45055), (9011, 21890), (10945, 18022)]