1640603965

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{2011}}^1$

素因数の和:2210

約数の個数: 64

約数和(自身を含む): 2660861952

約数和(自身を除く): 1020257987

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 163, 385, 455, 715, 815, 1001, 1141, 1793, 2011, 2119, 5005, 5705, 8965, 10055, 10595, 12551, 14077, 14833, 22121, 23309, 26143, 62755, 70385, 74165, 110605, 116545, 130715, 154847, 163163, 183001, 287573, 327793, 774235, 815815, 915005, 1437865, 1638965, 2013011, 2294551, 3605723, 4261309, 10065055, 11472755, 18028615, 21306545, 25240061, 29829163, 46874399, 126200305, 149145815, 234371995, 328120793, 1640603965]

約数ペア:

[(1, 1640603965), (5, 328120793), (7, 234371995), (11, 149145815), (13, 126200305), (35, 46874399), (55, 29829163), (65, 25240061), (77, 21306545), (91, 18028615), (143, 11472755), (163, 10065055), (385, 4261309), (455, 3605723), (715, 2294551), (815, 2013011), (1001, 1638965), (1141, 1437865), (1793, 915005), (2011, 815815), (2119, 774235), (5005, 327793), (5705, 287573), (8965, 183001), (10055, 163163), (10595, 154847), (12551, 130715), (14077, 116545), (14833, 110605), (22121, 74165), (23309, 70385), (26143, 62755)]