20029860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{499}}^1$

素因数の和:737

約数の個数: 72

約数和(自身を含む): 61152000

約数和(自身を除く): 41122140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 499, 669, 892, 998, 1115, 1338, 1497, 1996, 2007, 2230, 2495, 2676, 2994, 3345, 4014, 4460, 4491, 4990, 5988, 6690, 7485, 8028, 8982, 9980, 10035, 13380, 14970, 17964, 20070, 22455, 29940, 40140, 44910, 89820, 111277, 222554, 333831, 445108, 556385, 667662, 1001493, 1112770, 1335324, 1669155, 2002986, 2225540, 3338310, 4005972, 5007465, 6676620, 10014930, 20029860]

約数ペア:

[(1, 20029860), (2, 10014930), (3, 6676620), (4, 5007465), (5, 4005972), (6, 3338310), (9, 2225540), (10, 2002986), (12, 1669155), (15, 1335324), (18, 1112770), (20, 1001493), (30, 667662), (36, 556385), (45, 445108), (60, 333831), (90, 222554), (180, 111277), (223, 89820), (446, 44910), (499, 40140), (669, 29940), (892, 22455), (998, 20070), (1115, 17964), (1338, 14970), (1497, 13380), (1996, 10035), (2007, 9980), (2230, 8982), (2495, 8028), (2676, 7485), (2994, 6690), (3345, 5988), (4014, 4990), (4460, 4491)]