18639720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1$

素因数の和:557

約数の個数: 160

約数和(自身を含む): 68476320

約数和(自身を除く): 49836600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 523, 540, 594, 648, 660, 792, 810, 891, 990, 1046, 1080, 1188, 1320, 1485, 1569, 1620, 1782, 1980, 2092, 2376, 2615, 2970, 3138, 3240, 3564, 3960, 4184, 4455, 4707, 5230, 5753, 5940, 6276, 7128, 7845, 8910, 9414, 10460, 11506, 11880, 12552, 14121, 15690, 17259, 17820, 18828, 20920, 23012, 23535, 28242, 28765, 31380, 34518, 35640, 37656, 42363, 46024, 47070, 51777, 56484, 57530, 62760, 69036, 70605, 84726, 86295, 94140, 103554, 112968, 115060, 138072, 141210, 155331, 169452, 172590, 188280, 207108, 211815, 230120, 258885, 282420, 310662, 338904, 345180, 414216, 423630, 465993, 517770, 564840, 621324, 690360, 776655, 847260, 931986, 1035540, 1242648, 1553310, 1694520, 1863972, 2071080, 2329965, 3106620, 3727944, 4659930, 6213240, 9319860, 18639720]

約数ペア:

[(1, 18639720), (2, 9319860), (3, 6213240), (4, 4659930), (5, 3727944), (6, 3106620), (8, 2329965), (9, 2071080), (10, 1863972), (11, 1694520), (12, 1553310), (15, 1242648), (18, 1035540), (20, 931986), (22, 847260), (24, 776655), (27, 690360), (30, 621324), (33, 564840), (36, 517770), (40, 465993), (44, 423630), (45, 414216), (54, 345180), (55, 338904), (60, 310662), (66, 282420), (72, 258885), (81, 230120), (88, 211815), (90, 207108), (99, 188280), (108, 172590), (110, 169452), (120, 155331), (132, 141210), (135, 138072), (162, 115060), (165, 112968), (180, 103554), (198, 94140), (216, 86295), (220, 84726), (264, 70605), (270, 69036), (297, 62760), (324, 57530), (330, 56484), (360, 51777), (396, 47070), (405, 46024), (440, 42363), (495, 37656), (523, 35640), (540, 34518), (594, 31380), (648, 28765), (660, 28242), (792, 23535), (810, 23012), (891, 20920), (990, 18828), (1046, 17820), (1080, 17259), (1188, 15690), (1320, 14121), (1485, 12552), (1569, 11880), (1620, 11506), (1782, 10460), (1980, 9414), (2092, 8910), (2376, 7845), (2615, 7128), (2970, 6276), (3138, 5940), (3240, 5753), (3564, 5230), (3960, 4707), (4184, 4455)]