208343560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 486259200

約数和(自身を除く): 277915640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 401, 419, 620, 802, 838, 1240, 1604, 1676, 2005, 2095, 3208, 3352, 4010, 4190, 8020, 8380, 12431, 12989, 16040, 16760, 24862, 25978, 49724, 51956, 62155, 64945, 99448, 103912, 124310, 129890, 168019, 248620, 259780, 336038, 497240, 519560, 672076, 840095, 1344152, 1680190, 3360380, 5208589, 6720760, 10417178, 20834356, 26042945, 41668712, 52085890, 104171780, 208343560]

約数ペア:

[(1, 208343560), (2, 104171780), (4, 52085890), (5, 41668712), (8, 26042945), (10, 20834356), (20, 10417178), (31, 6720760), (40, 5208589), (62, 3360380), (124, 1680190), (155, 1344152), (248, 840095), (310, 672076), (401, 519560), (419, 497240), (620, 336038), (802, 259780), (838, 248620), (1240, 168019), (1604, 129890), (1676, 124310), (2005, 103912), (2095, 99448), (3208, 64945), (3352, 62155), (4010, 51956), (4190, 49724), (8020, 25978), (8380, 24862), (12431, 16760), (12989, 16040)]