321334160

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{81973}}^1$

素因数の和:82000

約数の個数: 60

約数和(自身を含む): 869088348

約数和(自身を除く): 547754188

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, 81973, 163946, 327892, 409865, 573811, 655784, 819730, 1147622, 1311568, 1639460, 2295244, 2869055, 3278920, 4016677, 4590488, 5738110, 6557840, 8033354, 9180976, 11476220, 16066708, 20083385, 22952440, 32133416, 40166770, 45904880, 64266832, 80333540, 160667080, 321334160]

約数ペア:

[(1, 321334160), (2, 160667080), (4, 80333540), (5, 64266832), (7, 45904880), (8, 40166770), (10, 32133416), (14, 22952440), (16, 20083385), (20, 16066708), (28, 11476220), (35, 9180976), (40, 8033354), (49, 6557840), (56, 5738110), (70, 4590488), (80, 4016677), (98, 3278920), (112, 2869055), (140, 2295244), (196, 1639460), (245, 1311568), (280, 1147622), (392, 819730), (490, 655784), (560, 573811), (784, 409865), (980, 327892), (1960, 163946), (3920, 81973)]