18784260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:258

約数の個数: 144

約数和(自身を含む): 63685440

約数和(自身を除く): 44901180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 53, 55, 60, 66, 90, 99, 106, 110, 132, 159, 165, 179, 180, 198, 212, 220, 265, 318, 330, 358, 396, 477, 495, 530, 537, 583, 636, 660, 716, 795, 895, 954, 990, 1060, 1074, 1166, 1590, 1611, 1749, 1790, 1908, 1969, 1980, 2148, 2332, 2385, 2685, 2915, 3180, 3222, 3498, 3580, 3938, 4770, 5247, 5370, 5830, 5907, 6444, 6996, 7876, 8055, 8745, 9487, 9540, 9845, 10494, 10740, 11660, 11814, 16110, 17490, 17721, 18974, 19690, 20988, 23628, 26235, 28461, 29535, 32220, 34980, 35442, 37948, 39380, 47435, 52470, 56922, 59070, 70884, 85383, 88605, 94870, 104357, 104940, 113844, 118140, 142305, 170766, 177210, 189740, 208714, 284610, 313071, 341532, 354420, 417428, 426915, 521785, 569220, 626142, 853830, 939213, 1043570, 1252284, 1565355, 1707660, 1878426, 2087140, 3130710, 3756852, 4696065, 6261420, 9392130, 18784260]

約数ペア:

[(1, 18784260), (2, 9392130), (3, 6261420), (4, 4696065), (5, 3756852), (6, 3130710), (9, 2087140), (10, 1878426), (11, 1707660), (12, 1565355), (15, 1252284), (18, 1043570), (20, 939213), (22, 853830), (30, 626142), (33, 569220), (36, 521785), (44, 426915), (45, 417428), (53, 354420), (55, 341532), (60, 313071), (66, 284610), (90, 208714), (99, 189740), (106, 177210), (110, 170766), (132, 142305), (159, 118140), (165, 113844), (179, 104940), (180, 104357), (198, 94870), (212, 88605), (220, 85383), (265, 70884), (318, 59070), (330, 56922), (358, 52470), (396, 47435), (477, 39380), (495, 37948), (530, 35442), (537, 34980), (583, 32220), (636, 29535), (660, 28461), (716, 26235), (795, 23628), (895, 20988), (954, 19690), (990, 18974), (1060, 17721), (1074, 17490), (1166, 16110), (1590, 11814), (1611, 11660), (1749, 10740), (1790, 10494), (1908, 9845), (1969, 9540), (1980, 9487), (2148, 8745), (2332, 8055), (2385, 7876), (2685, 6996), (2915, 6444), (3180, 5907), (3222, 5830), (3498, 5370), (3580, 5247), (3938, 4770)]