255736960

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21031}}^1$

素因数の和:21069

約数の個数: 64

約数和(自身を含む): 643579200

約数和(自身を除く): 387842240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 21031, 42062, 84124, 105155, 168248, 210310, 336496, 399589, 420620, 672992, 799178, 841240, 1345984, 1598356, 1682480, 1997945, 2691968, 3196712, 3364960, 3995890, 6393424, 6729920, 7991780, 12786848, 13459840, 15983560, 25573696, 31967120, 51147392, 63934240, 127868480, 255736960]

約数ペア:

[(1, 255736960), (2, 127868480), (4, 63934240), (5, 51147392), (8, 31967120), (10, 25573696), (16, 15983560), (19, 13459840), (20, 12786848), (32, 7991780), (38, 6729920), (40, 6393424), (64, 3995890), (76, 3364960), (80, 3196712), (95, 2691968), (128, 1997945), (152, 1682480), (160, 1598356), (190, 1345984), (304, 841240), (320, 799178), (380, 672992), (608, 420620), (640, 399589), (760, 336496), (1216, 210310), (1520, 168248), (2432, 105155), (3040, 84124), (6080, 42062), (12160, 21031)]