205423900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{101}}^1$

素因数の和:212

約数の個数: 108

約数和(自身を含む): 502795944

約数和(自身を除く): 297372044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 101, 110, 172, 202, 215, 220, 275, 404, 430, 473, 505, 550, 860, 946, 1010, 1075, 1100, 1111, 1849, 1892, 2020, 2150, 2222, 2365, 2525, 3698, 4300, 4343, 4444, 4730, 5050, 5555, 7396, 8686, 9245, 9460, 10100, 11110, 11825, 17372, 18490, 20339, 21715, 22220, 23650, 27775, 36980, 40678, 43430, 46225, 47300, 47773, 55550, 81356, 86860, 92450, 95546, 101695, 108575, 111100, 184900, 186749, 191092, 203390, 217150, 238865, 373498, 406780, 434300, 477730, 508475, 746996, 933745, 955460, 1016950, 1194325, 1867490, 2033900, 2054239, 2388650, 3734980, 4108478, 4668725, 4777300, 8216956, 9337450, 10271195, 18674900, 20542390, 41084780, 51355975, 102711950, 205423900]

約数ペア:

[(1, 205423900), (2, 102711950), (4, 51355975), (5, 41084780), (10, 20542390), (11, 18674900), (20, 10271195), (22, 9337450), (25, 8216956), (43, 4777300), (44, 4668725), (50, 4108478), (55, 3734980), (86, 2388650), (100, 2054239), (101, 2033900), (110, 1867490), (172, 1194325), (202, 1016950), (215, 955460), (220, 933745), (275, 746996), (404, 508475), (430, 477730), (473, 434300), (505, 406780), (550, 373498), (860, 238865), (946, 217150), (1010, 203390), (1075, 191092), (1100, 186749), (1111, 184900), (1849, 111100), (1892, 108575), (2020, 101695), (2150, 95546), (2222, 92450), (2365, 86860), (2525, 81356), (3698, 55550), (4300, 47773), (4343, 47300), (4444, 46225), (4730, 43430), (5050, 40678), (5555, 36980), (7396, 27775), (8686, 23650), (9245, 22220), (9460, 21715), (10100, 20339), (11110, 18490), (11825, 17372)]