25163820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 84913920

約数和(自身を除く): 59750100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 71, 90, 99, 110, 132, 142, 165, 179, 180, 198, 213, 220, 284, 330, 355, 358, 396, 426, 495, 537, 639, 660, 710, 716, 781, 852, 895, 990, 1065, 1074, 1278, 1420, 1562, 1611, 1790, 1969, 1980, 2130, 2148, 2343, 2556, 2685, 3124, 3195, 3222, 3580, 3905, 3938, 4260, 4686, 5370, 5907, 6390, 6444, 7029, 7810, 7876, 8055, 9372, 9845, 10740, 11715, 11814, 12709, 12780, 14058, 15620, 16110, 17721, 19690, 23430, 23628, 25418, 28116, 29535, 32220, 35145, 35442, 38127, 39380, 46860, 50836, 59070, 63545, 70290, 70884, 76254, 88605, 114381, 118140, 127090, 139799, 140580, 152508, 177210, 190635, 228762, 254180, 279598, 354420, 381270, 419397, 457524, 559196, 571905, 698995, 762540, 838794, 1143810, 1258191, 1397990, 1677588, 2096985, 2287620, 2516382, 2795980, 4193970, 5032764, 6290955, 8387940, 12581910, 25163820]

約数ペア:

[(1, 25163820), (2, 12581910), (3, 8387940), (4, 6290955), (5, 5032764), (6, 4193970), (9, 2795980), (10, 2516382), (11, 2287620), (12, 2096985), (15, 1677588), (18, 1397990), (20, 1258191), (22, 1143810), (30, 838794), (33, 762540), (36, 698995), (44, 571905), (45, 559196), (55, 457524), (60, 419397), (66, 381270), (71, 354420), (90, 279598), (99, 254180), (110, 228762), (132, 190635), (142, 177210), (165, 152508), (179, 140580), (180, 139799), (198, 127090), (213, 118140), (220, 114381), (284, 88605), (330, 76254), (355, 70884), (358, 70290), (396, 63545), (426, 59070), (495, 50836), (537, 46860), (639, 39380), (660, 38127), (710, 35442), (716, 35145), (781, 32220), (852, 29535), (895, 28116), (990, 25418), (1065, 23628), (1074, 23430), (1278, 19690), (1420, 17721), (1562, 16110), (1611, 15620), (1790, 14058), (1969, 12780), (1980, 12709), (2130, 11814), (2148, 11715), (2343, 10740), (2556, 9845), (2685, 9372), (3124, 8055), (3195, 7876), (3222, 7810), (3580, 7029), (3905, 6444), (3938, 6390), (4260, 5907), (4686, 5370)]