388636868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{653}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 738339840

約数和(自身を除く): 349702972

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 191, 382, 653, 764, 779, 1306, 1558, 2612, 3116, 3629, 7258, 7831, 12407, 14516, 15662, 24814, 26773, 31324, 49628, 53546, 107092, 124723, 148789, 249446, 297578, 498892, 508687, 595156, 1017374, 2034748, 2369737, 4739474, 5113643, 9478948, 10227286, 20454572, 97159217, 194318434, 388636868]

約数ペア:

[(1, 388636868), (2, 194318434), (4, 97159217), (19, 20454572), (38, 10227286), (41, 9478948), (76, 5113643), (82, 4739474), (164, 2369737), (191, 2034748), (382, 1017374), (653, 595156), (764, 508687), (779, 498892), (1306, 297578), (1558, 249446), (2612, 148789), (3116, 124723), (3629, 107092), (7258, 53546), (7831, 49628), (12407, 31324), (14516, 26773), (15662, 24814)]