81975780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 192

約数和(自身を含む): 270950400

約数和(自身を除く): 188974620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 59, 60, 62, 83, 90, 93, 108, 118, 124, 135, 155, 166, 177, 180, 186, 236, 249, 270, 279, 295, 310, 332, 354, 372, 415, 465, 498, 531, 540, 558, 590, 620, 708, 747, 830, 837, 885, 930, 996, 1062, 1116, 1180, 1245, 1395, 1494, 1593, 1660, 1674, 1770, 1829, 1860, 2124, 2241, 2490, 2573, 2655, 2790, 2988, 3186, 3348, 3540, 3658, 3735, 4185, 4482, 4897, 4980, 5146, 5310, 5487, 5580, 6372, 7316, 7470, 7719, 7965, 8370, 8964, 9145, 9794, 10292, 10620, 10974, 11205, 12865, 14691, 14940, 15438, 15930, 16461, 16740, 18290, 19588, 21948, 22410, 23157, 24485, 25730, 27435, 29382, 30876, 31860, 32922, 36580, 38595, 44073, 44820, 46314, 48970, 49383, 51460, 54870, 58764, 65844, 69471, 73455, 77190, 82305, 88146, 92628, 97940, 98766, 109740, 115785, 132219, 138942, 146910, 151807, 154380, 164610, 176292, 197532, 220365, 231570, 246915, 264438, 277884, 293820, 303614, 329220, 347355, 440730, 455421, 463140, 493830, 528876, 607228, 661095, 694710, 759035, 881460, 910842, 987660, 1322190, 1366263, 1389420, 1518070, 1821684, 2277105, 2644380, 2732526, 3036140, 4098789, 4554210, 5465052, 6831315, 8197578, 9108420, 13662630, 16395156, 20493945, 27325260, 40987890, 81975780]

約数ペア:

[(1, 81975780), (2, 40987890), (3, 27325260), (4, 20493945), (5, 16395156), (6, 13662630), (9, 9108420), (10, 8197578), (12, 6831315), (15, 5465052), (18, 4554210), (20, 4098789), (27, 3036140), (30, 2732526), (31, 2644380), (36, 2277105), (45, 1821684), (54, 1518070), (59, 1389420), (60, 1366263), (62, 1322190), (83, 987660), (90, 910842), (93, 881460), (108, 759035), (118, 694710), (124, 661095), (135, 607228), (155, 528876), (166, 493830), (177, 463140), (180, 455421), (186, 440730), (236, 347355), (249, 329220), (270, 303614), (279, 293820), (295, 277884), (310, 264438), (332, 246915), (354, 231570), (372, 220365), (415, 197532), (465, 176292), (498, 164610), (531, 154380), (540, 151807), (558, 146910), (590, 138942), (620, 132219), (708, 115785), (747, 109740), (830, 98766), (837, 97940), (885, 92628), (930, 88146), (996, 82305), (1062, 77190), (1116, 73455), (1180, 69471), (1245, 65844), (1395, 58764), (1494, 54870), (1593, 51460), (1660, 49383), (1674, 48970), (1770, 46314), (1829, 44820), (1860, 44073), (2124, 38595), (2241, 36580), (2490, 32922), (2573, 31860), (2655, 30876), (2790, 29382), (2988, 27435), (3186, 25730), (3348, 24485), (3540, 23157), (3658, 22410), (3735, 21948), (4185, 19588), (4482, 18290), (4897, 16740), (4980, 16461), (5146, 15930), (5310, 15438), (5487, 14940), (5580, 14691), (6372, 12865), (7316, 11205), (7470, 10974), (7719, 10620), (7965, 10292), (8370, 9794), (8964, 9145)]