18228650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 72

約数和(自身を含む): 39184992

約数和(自身を除く): 20956342

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 121, 131, 230, 242, 253, 262, 275, 506, 550, 575, 605, 655, 1150, 1210, 1265, 1310, 1441, 2530, 2783, 2882, 3013, 3025, 3275, 5566, 6026, 6050, 6325, 6550, 7205, 12650, 13915, 14410, 15065, 15851, 27830, 30130, 31702, 33143, 36025, 66286, 69575, 72050, 75325, 79255, 139150, 150650, 158510, 165715, 331430, 364573, 396275, 729146, 792550, 828575, 1657150, 1822865, 3645730, 9114325, 18228650]

約数ペア:

[(1, 18228650), (2, 9114325), (5, 3645730), (10, 1822865), (11, 1657150), (22, 828575), (23, 792550), (25, 729146), (46, 396275), (50, 364573), (55, 331430), (110, 165715), (115, 158510), (121, 150650), (131, 139150), (230, 79255), (242, 75325), (253, 72050), (262, 69575), (275, 66286), (506, 36025), (550, 33143), (575, 31702), (605, 30130), (655, 27830), (1150, 15851), (1210, 15065), (1265, 14410), (1310, 13915), (1441, 12650), (2530, 7205), (2783, 6550), (2882, 6325), (3013, 6050), (3025, 6026), (3275, 5566)]