20870024

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 26304376

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 71, 116, 142, 181, 203, 232, 284, 362, 406, 497, 568, 724, 812, 994, 1267, 1448, 1624, 1988, 2059, 2534, 3976, 4118, 5068, 5249, 8236, 10136, 10498, 12851, 14413, 16472, 20996, 25702, 28826, 36743, 41992, 51404, 57652, 73486, 89957, 102808, 115304, 146972, 179914, 293944, 359828, 372679, 719656, 745358, 1490716, 2608753, 2981432, 5217506, 10435012, 20870024]

約数ペア:

[(1, 20870024), (2, 10435012), (4, 5217506), (7, 2981432), (8, 2608753), (14, 1490716), (28, 745358), (29, 719656), (56, 372679), (58, 359828), (71, 293944), (116, 179914), (142, 146972), (181, 115304), (203, 102808), (232, 89957), (284, 73486), (362, 57652), (406, 51404), (497, 41992), (568, 36743), (724, 28826), (812, 25702), (994, 20996), (1267, 16472), (1448, 14413), (1624, 12851), (1988, 10498), (2059, 10136), (2534, 8236), (3976, 5249), (4118, 5068)]