2220218420

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{323647}}^1$

素因数の和:323677

約数の個数: 48

約数和(自身を含む): 5437286400

約数和(自身を除く): 3217067980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 323647, 647294, 1294588, 1618235, 2265529, 3236470, 4531058, 6472940, 9062116, 11327645, 15858703, 22655290, 31717406, 45310580, 63434812, 79293515, 111010921, 158587030, 222021842, 317174060, 444043684, 555054605, 1110109210, 2220218420]

約数ペア:

[(1, 2220218420), (2, 1110109210), (4, 555054605), (5, 444043684), (7, 317174060), (10, 222021842), (14, 158587030), (20, 111010921), (28, 79293515), (35, 63434812), (49, 45310580), (70, 31717406), (98, 22655290), (140, 15858703), (196, 11327645), (245, 9062116), (343, 6472940), (490, 4531058), (686, 3236470), (980, 2265529), (1372, 1618235), (1715, 1294588), (3430, 647294), (6860, 323647)]