63980900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{20639}}^1$

素因数の和:20684

約数の個数: 36

約数和(自身を含む): 143324160

約数和(自身を除く): 79343260

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 20639, 41278, 82556, 103195, 206390, 412780, 515975, 639809, 1031950, 1279618, 2063900, 2559236, 3199045, 6398090, 12796180, 15995225, 31990450, 63980900]

約数ペア:

[(1, 63980900), (2, 31990450), (4, 15995225), (5, 12796180), (10, 6398090), (20, 3199045), (25, 2559236), (31, 2063900), (50, 1279618), (62, 1031950), (100, 639809), (124, 515975), (155, 412780), (310, 206390), (620, 103195), (775, 82556), (1550, 41278), (3100, 20639)]