20462260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11243}}^1$

素因数の和:11272

約数の個数: 48

約数和(自身を含む): 52891776

約数和(自身を除く): 32429516

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, 11243, 22486, 44972, 56215, 78701, 112430, 146159, 157402, 224860, 292318, 314804, 393505, 584636, 730795, 787010, 1023113, 1461590, 1574020, 2046226, 2923180, 4092452, 5115565, 10231130, 20462260]

約数ペア:

[(1, 20462260), (2, 10231130), (4, 5115565), (5, 4092452), (7, 2923180), (10, 2046226), (13, 1574020), (14, 1461590), (20, 1023113), (26, 787010), (28, 730795), (35, 584636), (52, 393505), (65, 314804), (70, 292318), (91, 224860), (130, 157402), (140, 146159), (182, 112430), (260, 78701), (364, 56215), (455, 44972), (910, 22486), (1820, 11243)]