20839070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 45069696

約数和(自身を除く): 24230626

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 53, 70, 82, 106, 137, 205, 265, 274, 287, 371, 410, 530, 574, 685, 742, 959, 1370, 1435, 1855, 1918, 2173, 2870, 3710, 4346, 4795, 5617, 7261, 9590, 10865, 11234, 14522, 15211, 21730, 28085, 30422, 36305, 39319, 50827, 56170, 72610, 76055, 78638, 101654, 152110, 196595, 254135, 297701, 393190, 508270, 595402, 1488505, 2083907, 2977010, 4167814, 10419535, 20839070]

約数ペア:

[(1, 20839070), (2, 10419535), (5, 4167814), (7, 2977010), (10, 2083907), (14, 1488505), (35, 595402), (41, 508270), (53, 393190), (70, 297701), (82, 254135), (106, 196595), (137, 152110), (205, 101654), (265, 78638), (274, 76055), (287, 72610), (371, 56170), (410, 50827), (530, 39319), (574, 36305), (685, 30422), (742, 28085), (959, 21730), (1370, 15211), (1435, 14522), (1855, 11234), (1918, 10865), (2173, 9590), (2870, 7261), (3710, 5617), (4346, 4795)]