16729580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 41923728

約数和(自身を除く): 25194148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 397, 430, 490, 602, 794, 860, 980, 1204, 1505, 1588, 1985, 2107, 2779, 3010, 3970, 4214, 5558, 6020, 7940, 8428, 10535, 11116, 13895, 17071, 19453, 21070, 27790, 34142, 38906, 42140, 55580, 68284, 77812, 85355, 97265, 119497, 170710, 194530, 238994, 341420, 389060, 477988, 597485, 836479, 1194970, 1672958, 2389940, 3345916, 4182395, 8364790, 16729580]

約数ペア:

[(1, 16729580), (2, 8364790), (4, 4182395), (5, 3345916), (7, 2389940), (10, 1672958), (14, 1194970), (20, 836479), (28, 597485), (35, 477988), (43, 389060), (49, 341420), (70, 238994), (86, 194530), (98, 170710), (140, 119497), (172, 97265), (196, 85355), (215, 77812), (245, 68284), (301, 55580), (397, 42140), (430, 38906), (490, 34142), (602, 27790), (794, 21070), (860, 19453), (980, 17071), (1204, 13895), (1505, 11116), (1588, 10535), (1985, 8428), (2107, 7940), (2779, 6020), (3010, 5558), (3970, 4214)]