281311360

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1350

約数の個数: 128

約数和(自身を含む): 757900800

約数和(自身を除く): 476589440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 310, 320, 341, 352, 440, 496, 620, 640, 682, 704, 880, 992, 1240, 1289, 1364, 1408, 1705, 1760, 1984, 2480, 2578, 2728, 3410, 3520, 3968, 4960, 5156, 5456, 6445, 6820, 7040, 9920, 10312, 10912, 12890, 13640, 14179, 19840, 20624, 21824, 25780, 27280, 28358, 39959, 41248, 43648, 51560, 54560, 56716, 70895, 79918, 82496, 103120, 109120, 113432, 141790, 159836, 164992, 199795, 206240, 218240, 226864, 283580, 319672, 399590, 412480, 439549, 453728, 567160, 639344, 799180, 824960, 879098, 907456, 1134320, 1278688, 1598360, 1758196, 1814912, 2197745, 2268640, 2557376, 3196720, 3516392, 4395490, 4537280, 5114752, 6393440, 7032784, 8790980, 9074560, 12786880, 14065568, 17581960, 25573760, 28131136, 35163920, 56262272, 70327840, 140655680, 281311360]

約数ペア:

[(1, 281311360), (2, 140655680), (4, 70327840), (5, 56262272), (8, 35163920), (10, 28131136), (11, 25573760), (16, 17581960), (20, 14065568), (22, 12786880), (31, 9074560), (32, 8790980), (40, 7032784), (44, 6393440), (55, 5114752), (62, 4537280), (64, 4395490), (80, 3516392), (88, 3196720), (110, 2557376), (124, 2268640), (128, 2197745), (155, 1814912), (160, 1758196), (176, 1598360), (220, 1278688), (248, 1134320), (310, 907456), (320, 879098), (341, 824960), (352, 799180), (440, 639344), (496, 567160), (620, 453728), (640, 439549), (682, 412480), (704, 399590), (880, 319672), (992, 283580), (1240, 226864), (1289, 218240), (1364, 206240), (1408, 199795), (1705, 164992), (1760, 159836), (1984, 141790), (2480, 113432), (2578, 109120), (2728, 103120), (3410, 82496), (3520, 79918), (3968, 70895), (4960, 56716), (5156, 54560), (5456, 51560), (6445, 43648), (6820, 41248), (7040, 39959), (9920, 28358), (10312, 27280), (10912, 25780), (12890, 21824), (13640, 20624), (14179, 19840)]