1218001320

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8609}}^1$

素因数の和:8760

約数の個数: 128

約数和(自身を含む): 4091472000

約数和(自身を除く): 2873470680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 131, 135, 180, 216, 262, 270, 360, 393, 524, 540, 655, 786, 1048, 1080, 1179, 1310, 1572, 1965, 2358, 2620, 3144, 3537, 3930, 4716, 5240, 5895, 7074, 7860, 8609, 9432, 11790, 14148, 15720, 17218, 17685, 23580, 25827, 28296, 34436, 35370, 43045, 47160, 51654, 68872, 70740, 77481, 86090, 103308, 129135, 141480, 154962, 172180, 206616, 232443, 258270, 309924, 344360, 387405, 464886, 516540, 619848, 774810, 929772, 1033080, 1127779, 1162215, 1549620, 1859544, 2255558, 2324430, 3099240, 3383337, 4511116, 4648860, 5638895, 6766674, 9022232, 9297720, 10150011, 11277790, 13533348, 16916685, 20300022, 22555580, 27066696, 30450033, 33833370, 40600044, 45111160, 50750055, 60900066, 67666740, 81200088, 101500110, 121800132, 135333480, 152250165, 203000220, 243600264, 304500330, 406000440, 609000660, 1218001320]

約数ペア:

[(1, 1218001320), (2, 609000660), (3, 406000440), (4, 304500330), (5, 243600264), (6, 203000220), (8, 152250165), (9, 135333480), (10, 121800132), (12, 101500110), (15, 81200088), (18, 67666740), (20, 60900066), (24, 50750055), (27, 45111160), (30, 40600044), (36, 33833370), (40, 30450033), (45, 27066696), (54, 22555580), (60, 20300022), (72, 16916685), (90, 13533348), (108, 11277790), (120, 10150011), (131, 9297720), (135, 9022232), (180, 6766674), (216, 5638895), (262, 4648860), (270, 4511116), (360, 3383337), (393, 3099240), (524, 2324430), (540, 2255558), (655, 1859544), (786, 1549620), (1048, 1162215), (1080, 1127779), (1179, 1033080), (1310, 929772), (1572, 774810), (1965, 619848), (2358, 516540), (2620, 464886), (3144, 387405), (3537, 344360), (3930, 309924), (4716, 258270), (5240, 232443), (5895, 206616), (7074, 172180), (7860, 154962), (8609, 141480), (9432, 129135), (11790, 103308), (14148, 86090), (15720, 77481), (17218, 70740), (17685, 68872), (23580, 51654), (25827, 47160), (28296, 43045), (34436, 35370)]