3928820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 10150560

約数和(自身を除く): 6221740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 211, 245, 266, 380, 422, 490, 532, 665, 844, 931, 980, 1055, 1330, 1477, 1862, 2110, 2660, 2954, 3724, 4009, 4220, 4655, 5908, 7385, 8018, 9310, 10339, 14770, 16036, 18620, 20045, 20678, 28063, 29540, 40090, 41356, 51695, 56126, 80180, 103390, 112252, 140315, 196441, 206780, 280630, 392882, 561260, 785764, 982205, 1964410, 3928820]

約数ペア:

[(1, 3928820), (2, 1964410), (4, 982205), (5, 785764), (7, 561260), (10, 392882), (14, 280630), (19, 206780), (20, 196441), (28, 140315), (35, 112252), (38, 103390), (49, 80180), (70, 56126), (76, 51695), (95, 41356), (98, 40090), (133, 29540), (140, 28063), (190, 20678), (196, 20045), (211, 18620), (245, 16036), (266, 14770), (380, 10339), (422, 9310), (490, 8018), (532, 7385), (665, 5908), (844, 4655), (931, 4220), (980, 4009), (1055, 3724), (1330, 2954), (1477, 2660), (1862, 2110)]