205996960

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1021}}^1$

素因数の和:1146

約数の個数: 96

約数和(自身を含む): 530025552

約数和(自身を除く): 324028592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 97, 104, 130, 160, 194, 208, 260, 388, 416, 485, 520, 776, 970, 1021, 1040, 1261, 1552, 1940, 2042, 2080, 2522, 3104, 3880, 4084, 5044, 5105, 6305, 7760, 8168, 10088, 10210, 12610, 13273, 15520, 16336, 20176, 20420, 25220, 26546, 32672, 40352, 40840, 50440, 53092, 66365, 81680, 99037, 100880, 106184, 132730, 163360, 198074, 201760, 212368, 265460, 396148, 424736, 495185, 530920, 792296, 990370, 1061840, 1287481, 1584592, 1980740, 2123680, 2574962, 3169184, 3961480, 5149924, 6437405, 7922960, 10299848, 12874810, 15845920, 20599696, 25749620, 41199392, 51499240, 102998480, 205996960]

約数ペア:

[(1, 205996960), (2, 102998480), (4, 51499240), (5, 41199392), (8, 25749620), (10, 20599696), (13, 15845920), (16, 12874810), (20, 10299848), (26, 7922960), (32, 6437405), (40, 5149924), (52, 3961480), (65, 3169184), (80, 2574962), (97, 2123680), (104, 1980740), (130, 1584592), (160, 1287481), (194, 1061840), (208, 990370), (260, 792296), (388, 530920), (416, 495185), (485, 424736), (520, 396148), (776, 265460), (970, 212368), (1021, 201760), (1040, 198074), (1261, 163360), (1552, 132730), (1940, 106184), (2042, 100880), (2080, 99037), (2522, 81680), (3104, 66365), (3880, 53092), (4084, 50440), (5044, 40840), (5105, 40352), (6305, 32672), (7760, 26546), (8168, 25220), (10088, 20420), (10210, 20176), (12610, 16336), (13273, 15520)]