278788210

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1\times {\mathrm{1019}}^1$

素因数の和:1386

約数の個数: 32

約数和(自身を含む): 508939200

約数和(自身を除く): 230150990

約数列:

[1, 2, 5, 10, 109, 218, 251, 502, 545, 1019, 1090, 1255, 2038, 2510, 5095, 10190, 27359, 54718, 111071, 136795, 222142, 255769, 273590, 511538, 555355, 1110710, 1278845, 2557690, 27878821, 55757642, 139394105, 278788210]

約数ペア:

[(1, 278788210), (2, 139394105), (5, 55757642), (10, 27878821), (109, 2557690), (218, 1278845), (251, 1110710), (502, 555355), (545, 511538), (1019, 273590), (1090, 255769), (1255, 222142), (2038, 136795), (2510, 111071), (5095, 54718), (10190, 27359)]