81068260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44543}}^1$

素因数の和:44572

約数の個数: 48

約数和(自身を含む): 209534976

約数和(自身を除く): 128466716

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44543, 89086, 178172, 222715, 311801, 445430, 579059, 623602, 890860, 1158118, 1247204, 1559005, 2316236, 2895295, 3118010, 4053413, 5790590, 6236020, 8106826, 11581180, 16213652, 20267065, 40534130, 81068260]

約数ペア:

[(1, 81068260), (2, 40534130), (4, 20267065), (5, 16213652), (7, 11581180), (10, 8106826), (13, 6236020), (14, 5790590), (20, 4053413), (26, 3118010), (28, 2895295), (35, 2316236), (52, 1559005), (65, 1247204), (70, 1158118), (91, 890860), (130, 623602), (140, 579059), (182, 445430), (260, 311801), (364, 222715), (455, 178172), (910, 89086), (1820, 44543)]