18381840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:608

約数の個数: 80

約数和(自身を含む): 57424896

約数和(自身を除く): 39043056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 191, 240, 382, 401, 573, 764, 802, 955, 1146, 1203, 1528, 1604, 1910, 2005, 2292, 2406, 2865, 3056, 3208, 3820, 4010, 4584, 4812, 5730, 6015, 6416, 7640, 8020, 9168, 9624, 11460, 12030, 15280, 16040, 19248, 22920, 24060, 32080, 45840, 48120, 76591, 96240, 153182, 229773, 306364, 382955, 459546, 612728, 765910, 919092, 1148865, 1225456, 1531820, 1838184, 2297730, 3063640, 3676368, 4595460, 6127280, 9190920, 18381840]

約数ペア:

[(1, 18381840), (2, 9190920), (3, 6127280), (4, 4595460), (5, 3676368), (6, 3063640), (8, 2297730), (10, 1838184), (12, 1531820), (15, 1225456), (16, 1148865), (20, 919092), (24, 765910), (30, 612728), (40, 459546), (48, 382955), (60, 306364), (80, 229773), (120, 153182), (191, 96240), (240, 76591), (382, 48120), (401, 45840), (573, 32080), (764, 24060), (802, 22920), (955, 19248), (1146, 16040), (1203, 15280), (1528, 12030), (1604, 11460), (1910, 9624), (2005, 9168), (2292, 8020), (2406, 7640), (2865, 6416), (3056, 6015), (3208, 5730), (3820, 4812), (4010, 4584)]