51380720

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6359}}^1$

素因数の和:6473

約数の個数: 40

約数和(自身を含む): 120661920

約数和(自身を除く): 69281200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 6359, 8080, 12718, 25436, 31795, 50872, 63590, 101744, 127180, 254360, 508720, 642259, 1284518, 2569036, 3211295, 5138072, 6422590, 10276144, 12845180, 25690360, 51380720]

約数ペア:

[(1, 51380720), (2, 25690360), (4, 12845180), (5, 10276144), (8, 6422590), (10, 5138072), (16, 3211295), (20, 2569036), (40, 1284518), (80, 642259), (101, 508720), (202, 254360), (404, 127180), (505, 101744), (808, 63590), (1010, 50872), (1616, 31795), (2020, 25436), (4040, 12718), (6359, 8080)]