18987120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{26371}}^1$

素因数の和:26390

約数の個数: 60

約数和(自身を含む): 63767496

約数和(自身を除く): 44780376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 26371, 52742, 79113, 105484, 131855, 158226, 210968, 237339, 263710, 316452, 395565, 421936, 474678, 527420, 632904, 791130, 949356, 1054840, 1186695, 1265808, 1582260, 1898712, 2109680, 2373390, 3164520, 3797424, 4746780, 6329040, 9493560, 18987120]

約数ペア:

[(1, 18987120), (2, 9493560), (3, 6329040), (4, 4746780), (5, 3797424), (6, 3164520), (8, 2373390), (9, 2109680), (10, 1898712), (12, 1582260), (15, 1265808), (16, 1186695), (18, 1054840), (20, 949356), (24, 791130), (30, 632904), (36, 527420), (40, 474678), (45, 421936), (48, 395565), (60, 316452), (72, 263710), (80, 237339), (90, 210968), (120, 158226), (144, 131855), (180, 105484), (240, 79113), (360, 52742), (720, 26371)]