20185887472

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{2243}}^1\times {\mathrm{5569}}^1$

素因数の和:7921

約数の個数: 40

約数和(自身を含む): 39522090960

約数和(自身を除く): 19336203488

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 2243, 4486, 5569, 8972, 11138, 17944, 22276, 35888, 44552, 89104, 226543, 453086, 562469, 906172, 1124938, 1812344, 2249876, 3624688, 4499752, 8999504, 12491267, 24982534, 49965068, 99930136, 199860272, 1261617967, 2523235934, 5046471868, 10092943736, 20185887472]

約数ペア:

[(1, 20185887472), (2, 10092943736), (4, 5046471868), (8, 2523235934), (16, 1261617967), (101, 199860272), (202, 99930136), (404, 49965068), (808, 24982534), (1616, 12491267), (2243, 8999504), (4486, 4499752), (5569, 3624688), (8972, 2249876), (11138, 1812344), (17944, 1124938), (22276, 906172), (35888, 562469), (44552, 453086), (89104, 226543)]