16874820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 51531480

約数和(自身を除く): 34656660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 389, 482, 723, 778, 964, 1167, 1205, 1446, 1556, 1945, 2169, 2334, 2410, 2892, 3501, 3615, 3890, 4338, 4668, 4820, 5835, 7002, 7230, 7780, 8676, 10845, 11670, 14004, 14460, 17505, 21690, 23340, 35010, 43380, 70020, 93749, 187498, 281247, 374996, 468745, 562494, 843741, 937490, 1124988, 1406235, 1687482, 1874980, 2812470, 3374964, 4218705, 5624940, 8437410, 16874820]

約数ペア:

[(1, 16874820), (2, 8437410), (3, 5624940), (4, 4218705), (5, 3374964), (6, 2812470), (9, 1874980), (10, 1687482), (12, 1406235), (15, 1124988), (18, 937490), (20, 843741), (30, 562494), (36, 468745), (45, 374996), (60, 281247), (90, 187498), (180, 93749), (241, 70020), (389, 43380), (482, 35010), (723, 23340), (778, 21690), (964, 17505), (1167, 14460), (1205, 14004), (1446, 11670), (1556, 10845), (1945, 8676), (2169, 7780), (2334, 7230), (2410, 7002), (2892, 5835), (3501, 4820), (3615, 4668), (3890, 4338)]