20187381040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{262583}}^1$

素因数の和:262658

約数の個数: 60

約数和(自身を含む): 48498739632

約数和(自身を除く): 28311358592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1240, 1922, 2480, 3844, 4805, 7688, 9610, 15376, 19220, 38440, 76880, 262583, 525166, 1050332, 1312915, 2100664, 2625830, 4201328, 5251660, 8140073, 10503320, 16280146, 21006640, 32560292, 40700365, 65120584, 81400730, 130241168, 162801460, 252342263, 325602920, 504684526, 651205840, 1009369052, 1261711315, 2018738104, 2523422630, 4037476208, 5046845260, 10093690520, 20187381040]

約数ペア:

[(1, 20187381040), (2, 10093690520), (4, 5046845260), (5, 4037476208), (8, 2523422630), (10, 2018738104), (16, 1261711315), (20, 1009369052), (31, 651205840), (40, 504684526), (62, 325602920), (80, 252342263), (124, 162801460), (155, 130241168), (248, 81400730), (310, 65120584), (496, 40700365), (620, 32560292), (961, 21006640), (1240, 16280146), (1922, 10503320), (2480, 8140073), (3844, 5251660), (4805, 4201328), (7688, 2625830), (9610, 2100664), (15376, 1312915), (19220, 1050332), (38440, 525166), (76880, 262583)]