66853540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 151809840

約数和(自身を除く): 84956300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 389, 661, 778, 1322, 1556, 1945, 2644, 3305, 3890, 5057, 6610, 7780, 8593, 10114, 13220, 17186, 20228, 25285, 34372, 42965, 50570, 85930, 101140, 171860, 257129, 514258, 1028516, 1285645, 2571290, 3342677, 5142580, 6685354, 13370708, 16713385, 33426770, 66853540]

約数ペア:

[(1, 66853540), (2, 33426770), (4, 16713385), (5, 13370708), (10, 6685354), (13, 5142580), (20, 3342677), (26, 2571290), (52, 1285645), (65, 1028516), (130, 514258), (260, 257129), (389, 171860), (661, 101140), (778, 85930), (1322, 50570), (1556, 42965), (1945, 34372), (2644, 25285), (3305, 20228), (3890, 17186), (5057, 13220), (6610, 10114), (7780, 8593)]