16405727180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1\times {\mathrm{14281}}^1$

素因数の和:15170

約数の個数: 48

約数和(自身を含む): 34982902080

約数和(自身を除く): 18577174900

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 809, 1420, 1618, 3236, 4045, 8090, 14281, 16180, 28562, 57124, 57439, 71405, 114878, 142810, 229756, 285620, 287195, 574390, 1013951, 1148780, 2027902, 4055804, 5069755, 10139510, 11553329, 20279020, 23106658, 46213316, 57766645, 115533290, 231066580, 820286359, 1640572718, 3281145436, 4101431795, 8202863590, 16405727180]

約数ペア:

[(1, 16405727180), (2, 8202863590), (4, 4101431795), (5, 3281145436), (10, 1640572718), (20, 820286359), (71, 231066580), (142, 115533290), (284, 57766645), (355, 46213316), (710, 23106658), (809, 20279020), (1420, 11553329), (1618, 10139510), (3236, 5069755), (4045, 4055804), (8090, 2027902), (14281, 1148780), (16180, 1013951), (28562, 574390), (57124, 287195), (57439, 285620), (71405, 229756), (114878, 142810)]