28288920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{739}}^1$

素因数の和:793

約数の個数: 128

約数和(自身を含む): 95904000

約数和(自身を除く): 67615080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 29, 30, 33, 40, 44, 55, 58, 60, 66, 87, 88, 110, 116, 120, 132, 145, 165, 174, 220, 232, 264, 290, 319, 330, 348, 435, 440, 580, 638, 660, 696, 739, 870, 957, 1160, 1276, 1320, 1478, 1595, 1740, 1914, 2217, 2552, 2956, 3190, 3480, 3695, 3828, 4434, 4785, 5912, 6380, 7390, 7656, 8129, 8868, 9570, 11085, 12760, 14780, 16258, 17736, 19140, 21431, 22170, 24387, 29560, 32516, 38280, 40645, 42862, 44340, 48774, 64293, 65032, 81290, 85724, 88680, 97548, 107155, 121935, 128586, 162580, 171448, 195096, 214310, 235741, 243870, 257172, 321465, 325160, 428620, 471482, 487740, 514344, 642930, 707223, 857240, 942964, 975480, 1178705, 1285860, 1414446, 1885928, 2357410, 2571720, 2828892, 3536115, 4714820, 5657784, 7072230, 9429640, 14144460, 28288920]

約数ペア:

[(1, 28288920), (2, 14144460), (3, 9429640), (4, 7072230), (5, 5657784), (6, 4714820), (8, 3536115), (10, 2828892), (11, 2571720), (12, 2357410), (15, 1885928), (20, 1414446), (22, 1285860), (24, 1178705), (29, 975480), (30, 942964), (33, 857240), (40, 707223), (44, 642930), (55, 514344), (58, 487740), (60, 471482), (66, 428620), (87, 325160), (88, 321465), (110, 257172), (116, 243870), (120, 235741), (132, 214310), (145, 195096), (165, 171448), (174, 162580), (220, 128586), (232, 121935), (264, 107155), (290, 97548), (319, 88680), (330, 85724), (348, 81290), (435, 65032), (440, 64293), (580, 48774), (638, 44340), (660, 42862), (696, 40645), (739, 38280), (870, 32516), (957, 29560), (1160, 24387), (1276, 22170), (1320, 21431), (1478, 19140), (1595, 17736), (1740, 16258), (1914, 14780), (2217, 12760), (2552, 11085), (2956, 9570), (3190, 8868), (3480, 8129), (3695, 7656), (3828, 7390), (4434, 6380), (4785, 5912)]