25595780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7949}}^1$

素因数の和:7988

約数の個数: 48

約数和(自身を含む): 64108800

約数和(自身を除く): 38513020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 7949, 15898, 31796, 39745, 55643, 79490, 111286, 158980, 182827, 222572, 278215, 365654, 556430, 731308, 914135, 1112860, 1279789, 1828270, 2559578, 3656540, 5119156, 6398945, 12797890, 25595780]

約数ペア:

[(1, 25595780), (2, 12797890), (4, 6398945), (5, 5119156), (7, 3656540), (10, 2559578), (14, 1828270), (20, 1279789), (23, 1112860), (28, 914135), (35, 731308), (46, 556430), (70, 365654), (92, 278215), (115, 222572), (140, 182827), (161, 158980), (230, 111286), (322, 79490), (460, 55643), (644, 39745), (805, 31796), (1610, 15898), (3220, 7949)]