51333660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:464

約数の個数: 144

約数和(自身を含む): 179891712

約数和(自身を除く): 128558052

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 131, 140, 180, 210, 252, 262, 311, 315, 393, 420, 524, 622, 630, 655, 786, 917, 933, 1179, 1244, 1260, 1310, 1555, 1572, 1834, 1866, 1965, 2177, 2358, 2620, 2751, 2799, 3110, 3668, 3732, 3930, 4354, 4585, 4665, 4716, 5502, 5598, 5895, 6220, 6531, 7860, 8253, 8708, 9170, 9330, 10885, 11004, 11196, 11790, 13062, 13755, 13995, 16506, 18340, 18660, 19593, 21770, 23580, 26124, 27510, 27990, 32655, 33012, 39186, 40741, 41265, 43540, 55020, 55980, 65310, 78372, 81482, 82530, 97965, 122223, 130620, 162964, 165060, 195930, 203705, 244446, 285187, 366669, 391860, 407410, 488892, 570374, 611115, 733338, 814820, 855561, 1140748, 1222230, 1425935, 1466676, 1711122, 1833345, 2444460, 2566683, 2851870, 3422244, 3666690, 4277805, 5133366, 5703740, 7333380, 8555610, 10266732, 12833415, 17111220, 25666830, 51333660]

約数ペア:

[(1, 51333660), (2, 25666830), (3, 17111220), (4, 12833415), (5, 10266732), (6, 8555610), (7, 7333380), (9, 5703740), (10, 5133366), (12, 4277805), (14, 3666690), (15, 3422244), (18, 2851870), (20, 2566683), (21, 2444460), (28, 1833345), (30, 1711122), (35, 1466676), (36, 1425935), (42, 1222230), (45, 1140748), (60, 855561), (63, 814820), (70, 733338), (84, 611115), (90, 570374), (105, 488892), (126, 407410), (131, 391860), (140, 366669), (180, 285187), (210, 244446), (252, 203705), (262, 195930), (311, 165060), (315, 162964), (393, 130620), (420, 122223), (524, 97965), (622, 82530), (630, 81482), (655, 78372), (786, 65310), (917, 55980), (933, 55020), (1179, 43540), (1244, 41265), (1260, 40741), (1310, 39186), (1555, 33012), (1572, 32655), (1834, 27990), (1866, 27510), (1965, 26124), (2177, 23580), (2358, 21770), (2620, 19593), (2751, 18660), (2799, 18340), (3110, 16506), (3668, 13995), (3732, 13755), (3930, 13062), (4354, 11790), (4585, 11196), (4665, 11004), (4716, 10885), (5502, 9330), (5598, 9170), (5895, 8708), (6220, 8253), (6531, 7860)]