18781488

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:263

約数の個数: 120

約数和(自身を含む): 58496256

約数和(自身を除く): 39714768

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 71, 72, 88, 99, 132, 142, 144, 167, 176, 198, 213, 264, 284, 334, 396, 426, 501, 528, 568, 639, 668, 781, 792, 852, 1002, 1136, 1278, 1336, 1503, 1562, 1584, 1704, 1837, 2004, 2343, 2556, 2672, 3006, 3124, 3408, 3674, 4008, 4686, 5112, 5511, 6012, 6248, 7029, 7348, 8016, 9372, 10224, 11022, 11857, 12024, 12496, 14058, 14696, 16533, 18744, 22044, 23714, 24048, 28116, 29392, 33066, 35571, 37488, 44088, 47428, 56232, 66132, 71142, 88176, 94856, 106713, 112464, 130427, 132264, 142284, 189712, 213426, 260854, 264528, 284568, 391281, 426852, 521708, 569136, 782562, 853704, 1043416, 1173843, 1565124, 1707408, 2086832, 2347686, 3130248, 4695372, 6260496, 9390744, 18781488]

約数ペア:

[(1, 18781488), (2, 9390744), (3, 6260496), (4, 4695372), (6, 3130248), (8, 2347686), (9, 2086832), (11, 1707408), (12, 1565124), (16, 1173843), (18, 1043416), (22, 853704), (24, 782562), (33, 569136), (36, 521708), (44, 426852), (48, 391281), (66, 284568), (71, 264528), (72, 260854), (88, 213426), (99, 189712), (132, 142284), (142, 132264), (144, 130427), (167, 112464), (176, 106713), (198, 94856), (213, 88176), (264, 71142), (284, 66132), (334, 56232), (396, 47428), (426, 44088), (501, 37488), (528, 35571), (568, 33066), (639, 29392), (668, 28116), (781, 24048), (792, 23714), (852, 22044), (1002, 18744), (1136, 16533), (1278, 14696), (1336, 14058), (1503, 12496), (1562, 12024), (1584, 11857), (1704, 11022), (1837, 10224), (2004, 9372), (2343, 8016), (2556, 7348), (2672, 7029), (3006, 6248), (3124, 6012), (3408, 5511), (3674, 5112), (4008, 4686)]