18540720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2341}}^1$

素因数の和:2371

約数の個数: 120

約数和(自身を含む): 67955472

約数和(自身を除く): 49414752

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2341, 2640, 3960, 4682, 7023, 7920, 9364, 11705, 14046, 18728, 21069, 23410, 25751, 28092, 35115, 37456, 42138, 46820, 51502, 56184, 70230, 77253, 84276, 93640, 103004, 105345, 112368, 128755, 140460, 154506, 168552, 187280, 206008, 210690, 231759, 257510, 280920, 309012, 337104, 386265, 412016, 421380, 463518, 515020, 561840, 618024, 772530, 842760, 927036, 1030040, 1158795, 1236048, 1545060, 1685520, 1854072, 2060080, 2317590, 3090120, 3708144, 4635180, 6180240, 9270360, 18540720]

約数ペア:

[(1, 18540720), (2, 9270360), (3, 6180240), (4, 4635180), (5, 3708144), (6, 3090120), (8, 2317590), (9, 2060080), (10, 1854072), (11, 1685520), (12, 1545060), (15, 1236048), (16, 1158795), (18, 1030040), (20, 927036), (22, 842760), (24, 772530), (30, 618024), (33, 561840), (36, 515020), (40, 463518), (44, 421380), (45, 412016), (48, 386265), (55, 337104), (60, 309012), (66, 280920), (72, 257510), (80, 231759), (88, 210690), (90, 206008), (99, 187280), (110, 168552), (120, 154506), (132, 140460), (144, 128755), (165, 112368), (176, 105345), (180, 103004), (198, 93640), (220, 84276), (240, 77253), (264, 70230), (330, 56184), (360, 51502), (396, 46820), (440, 42138), (495, 37456), (528, 35115), (660, 28092), (720, 25751), (792, 23410), (880, 21069), (990, 18728), (1320, 14046), (1584, 11705), (1980, 9364), (2341, 7920), (2640, 7023), (3960, 4682)]