398103440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2477}}^1$

素因数の和:2545

約数の個数: 120

約数和(自身を含む): 1103413752

約数和(自身を除く): 705310312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 140, 164, 196, 205, 245, 280, 287, 328, 392, 410, 490, 560, 574, 656, 784, 820, 980, 1148, 1435, 1640, 1960, 2009, 2296, 2477, 2870, 3280, 3920, 4018, 4592, 4954, 5740, 8036, 9908, 10045, 11480, 12385, 16072, 17339, 19816, 20090, 22960, 24770, 32144, 34678, 39632, 40180, 49540, 69356, 80360, 86695, 99080, 101557, 121373, 138712, 160720, 173390, 198160, 203114, 242746, 277424, 346780, 406228, 485492, 507785, 606865, 693560, 710899, 812456, 970984, 1015570, 1213730, 1387120, 1421798, 1624912, 1941968, 2031140, 2427460, 2843596, 3554495, 4062280, 4854920, 4976293, 5687192, 7108990, 8124560, 9709840, 9952586, 11374384, 14217980, 19905172, 24881465, 28435960, 39810344, 49762930, 56871920, 79620688, 99525860, 199051720, 398103440]

約数ペア:

[(1, 398103440), (2, 199051720), (4, 99525860), (5, 79620688), (7, 56871920), (8, 49762930), (10, 39810344), (14, 28435960), (16, 24881465), (20, 19905172), (28, 14217980), (35, 11374384), (40, 9952586), (41, 9709840), (49, 8124560), (56, 7108990), (70, 5687192), (80, 4976293), (82, 4854920), (98, 4062280), (112, 3554495), (140, 2843596), (164, 2427460), (196, 2031140), (205, 1941968), (245, 1624912), (280, 1421798), (287, 1387120), (328, 1213730), (392, 1015570), (410, 970984), (490, 812456), (560, 710899), (574, 693560), (656, 606865), (784, 507785), (820, 485492), (980, 406228), (1148, 346780), (1435, 277424), (1640, 242746), (1960, 203114), (2009, 198160), (2296, 173390), (2477, 160720), (2870, 138712), (3280, 121373), (3920, 101557), (4018, 99080), (4592, 86695), (4954, 80360), (5740, 69356), (8036, 49540), (9908, 40180), (10045, 39632), (11480, 34678), (12385, 32144), (16072, 24770), (17339, 22960), (19816, 20090)]