285801400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^2\times {\mathrm{1487}}^1$

素因数の和:1565

約数の個数: 72

約数和(自身を含む): 687076560

約数和(自身を除く): 401275160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 961, 1240, 1487, 1550, 1922, 2974, 3100, 3844, 4805, 5948, 6200, 7435, 7688, 9610, 11896, 14870, 19220, 24025, 29740, 37175, 38440, 46097, 48050, 59480, 74350, 92194, 96100, 148700, 184388, 192200, 230485, 297400, 368776, 460970, 921940, 1152425, 1429007, 1843880, 2304850, 2858014, 4609700, 5716028, 7145035, 9219400, 11432056, 14290070, 28580140, 35725175, 57160280, 71450350, 142900700, 285801400]

約数ペア:

[(1, 285801400), (2, 142900700), (4, 71450350), (5, 57160280), (8, 35725175), (10, 28580140), (20, 14290070), (25, 11432056), (31, 9219400), (40, 7145035), (50, 5716028), (62, 4609700), (100, 2858014), (124, 2304850), (155, 1843880), (200, 1429007), (248, 1152425), (310, 921940), (620, 460970), (775, 368776), (961, 297400), (1240, 230485), (1487, 192200), (1550, 184388), (1922, 148700), (2974, 96100), (3100, 92194), (3844, 74350), (4805, 59480), (5948, 48050), (6200, 46097), (7435, 38440), (7688, 37175), (9610, 29740), (11896, 24025), (14870, 19220)]