257781360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56531}}^1$

素因数の和:56566

約数の個数: 80

約数和(自身を含む): 841196160

約数和(自身を除く): 583414800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 56531, 113062, 169593, 226124, 282655, 339186, 452248, 565310, 678372, 847965, 904496, 1074089, 1130620, 1356744, 1695930, 2148178, 2261240, 2713488, 3222267, 3391860, 4296356, 4522480, 5370445, 6444534, 6783720, 8592712, 10740890, 12889068, 13567440, 16111335, 17185424, 21481780, 25778136, 32222670, 42963560, 51556272, 64445340, 85927120, 128890680, 257781360]

約数ペア:

[(1, 257781360), (2, 128890680), (3, 85927120), (4, 64445340), (5, 51556272), (6, 42963560), (8, 32222670), (10, 25778136), (12, 21481780), (15, 17185424), (16, 16111335), (19, 13567440), (20, 12889068), (24, 10740890), (30, 8592712), (38, 6783720), (40, 6444534), (48, 5370445), (57, 4522480), (60, 4296356), (76, 3391860), (80, 3222267), (95, 2713488), (114, 2261240), (120, 2148178), (152, 1695930), (190, 1356744), (228, 1130620), (240, 1074089), (285, 904496), (304, 847965), (380, 678372), (456, 565310), (570, 452248), (760, 339186), (912, 282655), (1140, 226124), (1520, 169593), (2280, 113062), (4560, 56531)]