397333820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{49297}}^1$

素因数の和:49350

約数の個数: 48

約数和(自身を含む): 927591168

約数和(自身を除く): 530257348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 49297, 98594, 197188, 246485, 492970, 640861, 985940, 1281722, 1528207, 2563444, 3056414, 3204305, 6112828, 6408610, 7641035, 12817220, 15282070, 19866691, 30564140, 39733382, 79466764, 99333455, 198666910, 397333820]

約数ペア:

[(1, 397333820), (2, 198666910), (4, 99333455), (5, 79466764), (10, 39733382), (13, 30564140), (20, 19866691), (26, 15282070), (31, 12817220), (52, 7641035), (62, 6408610), (65, 6112828), (124, 3204305), (130, 3056414), (155, 2563444), (260, 1528207), (310, 1281722), (403, 985940), (620, 640861), (806, 492970), (1612, 246485), (2015, 197188), (4030, 98594), (8060, 49297)]