219984940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{3547}}^1$

素因数の和:4006

約数の個数: 48

約数和(自身を含む): 529304832

約数和(自身を除く): 309319892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 886, 1772, 2215, 3101, 3547, 4430, 6202, 7094, 8860, 12404, 14188, 15505, 17735, 24829, 31010, 35470, 49658, 62020, 70940, 99316, 124145, 248290, 496580, 1571321, 3142642, 6285284, 7856605, 10999247, 15713210, 21998494, 31426420, 43996988, 54996235, 109992470, 219984940]

約数ペア:

[(1, 219984940), (2, 109992470), (4, 54996235), (5, 43996988), (7, 31426420), (10, 21998494), (14, 15713210), (20, 10999247), (28, 7856605), (35, 6285284), (70, 3142642), (140, 1571321), (443, 496580), (886, 248290), (1772, 124145), (2215, 99316), (3101, 70940), (3547, 62020), (4430, 49658), (6202, 35470), (7094, 31010), (8860, 24829), (12404, 17735), (14188, 15505)]