1905261380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{66109}}^1$

素因数の和:66260

約数の個数: 48

約数和(自身を含む): 4398166080

約数和(自身を除く): 2492904700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 655, 1310, 1441, 2620, 2882, 5764, 7205, 14410, 28820, 66109, 132218, 264436, 330545, 661090, 727199, 1322180, 1454398, 2908796, 3635995, 7271990, 8660279, 14543980, 17320558, 34641116, 43301395, 86602790, 95263069, 173205580, 190526138, 381052276, 476315345, 952630690, 1905261380]

約数ペア:

[(1, 1905261380), (2, 952630690), (4, 476315345), (5, 381052276), (10, 190526138), (11, 173205580), (20, 95263069), (22, 86602790), (44, 43301395), (55, 34641116), (110, 17320558), (131, 14543980), (220, 8660279), (262, 7271990), (524, 3635995), (655, 2908796), (1310, 1454398), (1441, 1322180), (2620, 727199), (2882, 661090), (5764, 330545), (7205, 264436), (14410, 132218), (28820, 66109)]