21000901300

素因数分解:

$2^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{317}}^1\times {\mathrm{3967}}^1$

素因数の和:4465

約数の個数: 72

約数和(自身を含む): 46001055744

約数和(自身を除く): 25000154444

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 167, 317, 334, 634, 668, 835, 1268, 1585, 1670, 3170, 3340, 3967, 4175, 6340, 7925, 7934, 8350, 15850, 15868, 16700, 19835, 31700, 39670, 52939, 79340, 99175, 105878, 198350, 211756, 264695, 396700, 529390, 662489, 1058780, 1257539, 1323475, 1324978, 2515078, 2646950, 2649956, 3312445, 5030156, 5293900, 6287695, 6624890, 12575390, 13249780, 16562225, 25150780, 31438475, 33124450, 62876950, 66248900, 125753900, 210009013, 420018026, 840036052, 1050045065, 2100090130, 4200180260, 5250225325, 10500450650, 21000901300]

約数ペア:

[(1, 21000901300), (2, 10500450650), (4, 5250225325), (5, 4200180260), (10, 2100090130), (20, 1050045065), (25, 840036052), (50, 420018026), (100, 210009013), (167, 125753900), (317, 66248900), (334, 62876950), (634, 33124450), (668, 31438475), (835, 25150780), (1268, 16562225), (1585, 13249780), (1670, 12575390), (3170, 6624890), (3340, 6287695), (3967, 5293900), (4175, 5030156), (6340, 3312445), (7925, 2649956), (7934, 2646950), (8350, 2515078), (15850, 1324978), (15868, 1323475), (16700, 1257539), (19835, 1058780), (31700, 662489), (39670, 529390), (52939, 396700), (79340, 264695), (99175, 211756), (105878, 198350)]