199917770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{10321}}^1$

素因数の和:10490

約数の個数: 32

約数和(自身を含む): 390171600

約数和(自身を除く): 190253830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1490, 1937, 3874, 9685, 10321, 19370, 20642, 51605, 103210, 134173, 268346, 670865, 1341730, 1537829, 3075658, 7689145, 15378290, 19991777, 39983554, 99958885, 199917770]

約数ペア:

[(1, 199917770), (2, 99958885), (5, 39983554), (10, 19991777), (13, 15378290), (26, 7689145), (65, 3075658), (130, 1537829), (149, 1341730), (298, 670865), (745, 268346), (1490, 134173), (1937, 103210), (3874, 51605), (9685, 20642), (10321, 19370)]