72045680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{18379}}^1$

素因数の和:18406

約数の個数: 60

約数和(自身を含む): 194864760

約数和(自身を除く): 122819080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 18379, 36758, 73516, 91895, 128653, 147032, 183790, 257306, 294064, 367580, 514612, 643265, 735160, 900571, 1029224, 1286530, 1470320, 1801142, 2058448, 2573060, 3602284, 4502855, 5146120, 7204568, 9005710, 10292240, 14409136, 18011420, 36022840, 72045680]

約数ペア:

[(1, 72045680), (2, 36022840), (4, 18011420), (5, 14409136), (7, 10292240), (8, 9005710), (10, 7204568), (14, 5146120), (16, 4502855), (20, 3602284), (28, 2573060), (35, 2058448), (40, 1801142), (49, 1470320), (56, 1286530), (70, 1029224), (80, 900571), (98, 735160), (112, 643265), (140, 514612), (196, 367580), (245, 294064), (280, 257306), (392, 183790), (490, 147032), (560, 128653), (784, 91895), (980, 73516), (1960, 36758), (3920, 18379)]