20449860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{569}}^1\times {\mathrm{599}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 57456000

約数和(自身を除く): 37006140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 569, 599, 1138, 1198, 1707, 1797, 2276, 2396, 2845, 2995, 3414, 3594, 5690, 5990, 6828, 7188, 8535, 8985, 11380, 11980, 17070, 17970, 34140, 35940, 340831, 681662, 1022493, 1363324, 1704155, 2044986, 3408310, 4089972, 5112465, 6816620, 10224930, 20449860]

約数ペア:

[(1, 20449860), (2, 10224930), (3, 6816620), (4, 5112465), (5, 4089972), (6, 3408310), (10, 2044986), (12, 1704155), (15, 1363324), (20, 1022493), (30, 681662), (60, 340831), (569, 35940), (599, 34140), (1138, 17970), (1198, 17070), (1707, 11980), (1797, 11380), (2276, 8985), (2396, 8535), (2845, 7188), (2995, 6828), (3414, 5990), (3594, 5690)]