216458340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{515377}}^1$

素因数の和:515396

約数の個数: 48

約数和(自身を含む): 692668032

約数和(自身を除く): 476209692

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 515377, 1030754, 1546131, 2061508, 2576885, 3092262, 3607639, 5153770, 6184524, 7215278, 7730655, 10307540, 10822917, 14430556, 15461310, 18038195, 21645834, 30922620, 36076390, 43291668, 54114585, 72152780, 108229170, 216458340]

約数ペア:

[(1, 216458340), (2, 108229170), (3, 72152780), (4, 54114585), (5, 43291668), (6, 36076390), (7, 30922620), (10, 21645834), (12, 18038195), (14, 15461310), (15, 14430556), (20, 10822917), (21, 10307540), (28, 7730655), (30, 7215278), (35, 6184524), (42, 5153770), (60, 3607639), (70, 3092262), (84, 2576885), (105, 2061508), (140, 1546131), (210, 1030754), (420, 515377)]