511987180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1\times {\mathrm{2243}}^1$

素因数の和:2466

約数の個数: 48

約数和(自身を含む): 1095915744

約数和(自身を除く): 583928564

約数列:

[1, 2, 4, 5, 10, 20, 101, 113, 202, 226, 404, 452, 505, 565, 1010, 1130, 2020, 2243, 2260, 4486, 8972, 11215, 11413, 22430, 22826, 44860, 45652, 57065, 114130, 226543, 228260, 253459, 453086, 506918, 906172, 1013836, 1132715, 1267295, 2265430, 2534590, 4530860, 5069180, 25599359, 51198718, 102397436, 127996795, 255993590, 511987180]

約数ペア:

[(1, 511987180), (2, 255993590), (4, 127996795), (5, 102397436), (10, 51198718), (20, 25599359), (101, 5069180), (113, 4530860), (202, 2534590), (226, 2265430), (404, 1267295), (452, 1132715), (505, 1013836), (565, 906172), (1010, 506918), (1130, 453086), (2020, 253459), (2243, 228260), (2260, 226543), (4486, 114130), (8972, 57065), (11215, 45652), (11413, 44860), (22430, 22826)]