31469940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{487}}^1$

素因数の和:861

約数の個数: 72

約数和(自身を含む): 95921280

約数和(自身を除く): 64451340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 359, 487, 718, 974, 1077, 1436, 1461, 1795, 1948, 2154, 2435, 2922, 3231, 3590, 4308, 4383, 4870, 5385, 5844, 6462, 7180, 7305, 8766, 9740, 10770, 12924, 14610, 16155, 17532, 21540, 21915, 29220, 32310, 43830, 64620, 87660, 174833, 349666, 524499, 699332, 874165, 1048998, 1573497, 1748330, 2097996, 2622495, 3146994, 3496660, 5244990, 6293988, 7867485, 10489980, 15734970, 31469940]

約数ペア:

[(1, 31469940), (2, 15734970), (3, 10489980), (4, 7867485), (5, 6293988), (6, 5244990), (9, 3496660), (10, 3146994), (12, 2622495), (15, 2097996), (18, 1748330), (20, 1573497), (30, 1048998), (36, 874165), (45, 699332), (60, 524499), (90, 349666), (180, 174833), (359, 87660), (487, 64620), (718, 43830), (974, 32310), (1077, 29220), (1436, 21915), (1461, 21540), (1795, 17532), (1948, 16155), (2154, 14610), (2435, 12924), (2922, 10770), (3231, 9740), (3590, 8766), (4308, 7305), (4383, 7180), (4870, 6462), (5385, 5844)]