20123305540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{285599}}^1$

素因数の和:285892

約数の個数: 48

約数和(自身を含む): 45677721600

約数和(自身を除く): 25554416060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 271, 542, 1084, 1355, 2710, 3523, 5420, 7046, 14092, 17615, 35230, 70460, 285599, 571198, 1142396, 1427995, 2855990, 3712787, 5711980, 7425574, 14851148, 18563935, 37127870, 74255740, 77397329, 154794658, 309589316, 386986645, 773973290, 1006165277, 1547946580, 2012330554, 4024661108, 5030826385, 10061652770, 20123305540]

約数ペア:

[(1, 20123305540), (2, 10061652770), (4, 5030826385), (5, 4024661108), (10, 2012330554), (13, 1547946580), (20, 1006165277), (26, 773973290), (52, 386986645), (65, 309589316), (130, 154794658), (260, 77397329), (271, 74255740), (542, 37127870), (1084, 18563935), (1355, 14851148), (2710, 7425574), (3523, 5711980), (5420, 3712787), (7046, 2855990), (14092, 1427995), (17615, 1142396), (35230, 571198), (70460, 285599)]