20045470

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 16968290

約数列:

[1, 2, 5, 10, 89, 101, 178, 202, 223, 445, 446, 505, 890, 1010, 1115, 2230, 8989, 17978, 19847, 22523, 39694, 44945, 45046, 89890, 99235, 112615, 198470, 225230, 2004547, 4009094, 10022735, 20045470]

約数ペア:

[(1, 20045470), (2, 10022735), (5, 4009094), (10, 2004547), (89, 225230), (101, 198470), (178, 112615), (202, 99235), (223, 89890), (445, 45046), (446, 44945), (505, 39694), (890, 22523), (1010, 19847), (1115, 17978), (2230, 8989)]