4399220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^2$

素因数の和:157

約数の個数: 54

約数和(自身を含む): 10909458

約数和(自身を除く): 6510238

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 469, 490, 670, 938, 980, 1340, 1876, 2345, 3283, 4489, 4690, 6566, 8978, 9380, 13132, 16415, 17956, 22445, 31423, 32830, 44890, 62846, 65660, 89780, 125692, 157115, 219961, 314230, 439922, 628460, 879844, 1099805, 2199610, 4399220]

約数ペア:

[(1, 4399220), (2, 2199610), (4, 1099805), (5, 879844), (7, 628460), (10, 439922), (14, 314230), (20, 219961), (28, 157115), (35, 125692), (49, 89780), (67, 65660), (70, 62846), (98, 44890), (134, 32830), (140, 31423), (196, 22445), (245, 17956), (268, 16415), (335, 13132), (469, 9380), (490, 8978), (670, 6566), (938, 4690), (980, 4489), (1340, 3283), (1876, 2345)]