853420390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{6271}}^1$

素因数の和:6748

約数の個数: 32

約数和(自身を含む): 1589575680

約数和(自身を除く): 736155290

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 439, 878, 2195, 4390, 6271, 12542, 13609, 27218, 31355, 62710, 68045, 136090, 194401, 388802, 972005, 1944010, 2752969, 5505938, 13764845, 27529690, 85342039, 170684078, 426710195, 853420390]

約数ペア:

[(1, 853420390), (2, 426710195), (5, 170684078), (10, 85342039), (31, 27529690), (62, 13764845), (155, 5505938), (310, 2752969), (439, 1944010), (878, 972005), (2195, 388802), (4390, 194401), (6271, 136090), (12542, 68045), (13609, 62710), (27218, 31355)]