31978475340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{76139227}}^1$

素因数の和:76139246

約数の個数: 48

約数和(自身を含む): 102331122432

約数和(自身を除く): 70352647092

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 76139227, 152278454, 228417681, 304556908, 380696135, 456835362, 532974589, 761392270, 913670724, 1065949178, 1142088405, 1522784540, 1598923767, 2131898356, 2284176810, 2664872945, 3197847534, 4568353620, 5329745890, 6395695068, 7994618835, 10659491780, 15989237670, 31978475340]

約数ペア:

[(1, 31978475340), (2, 15989237670), (3, 10659491780), (4, 7994618835), (5, 6395695068), (6, 5329745890), (7, 4568353620), (10, 3197847534), (12, 2664872945), (14, 2284176810), (15, 2131898356), (20, 1598923767), (21, 1522784540), (28, 1142088405), (30, 1065949178), (35, 913670724), (42, 761392270), (60, 532974589), (70, 456835362), (84, 380696135), (105, 304556908), (140, 228417681), (210, 152278454), (420, 76139227)]