87804920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313589}}^1$

素因数の和:313607

約数の個数: 32

約数和(自身を含む): 225784800

約数和(自身を除く): 137979880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313589, 627178, 1254356, 1567945, 2195123, 2508712, 3135890, 4390246, 6271780, 8780492, 10975615, 12543560, 17560984, 21951230, 43902460, 87804920]

約数ペア:

[(1, 87804920), (2, 43902460), (4, 21951230), (5, 17560984), (7, 12543560), (8, 10975615), (10, 8780492), (14, 6271780), (20, 4390246), (28, 3135890), (35, 2508712), (40, 2195123), (56, 1567945), (70, 1254356), (140, 627178), (280, 313589)]