20001476890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4576997}}^1$

素因数の和:4577046

約数の個数: 32

約数和(自身を含む): 39545262720

約数和(自身を除く): 19543785830

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 4576997, 9153994, 22884985, 45769970, 86962943, 105270931, 173925886, 210541862, 434814715, 526354655, 869629430, 1052709310, 2000147689, 4000295378, 10000738445, 20001476890]

約数ペア:

[(1, 20001476890), (2, 10000738445), (5, 4000295378), (10, 2000147689), (19, 1052709310), (23, 869629430), (38, 526354655), (46, 434814715), (95, 210541862), (115, 173925886), (190, 105270931), (230, 86962943), (437, 45769970), (874, 22884985), (2185, 9153994), (4370, 4576997)]