243261940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{640163}}^1$

素因数の和:640191

約数の個数: 24

約数和(自身を含む): 537737760

約数和(自身を除く): 294475820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 640163, 1280326, 2560652, 3200815, 6401630, 12163097, 12803260, 24326194, 48652388, 60815485, 121630970, 243261940]

約数ペア:

[(1, 243261940), (2, 121630970), (4, 60815485), (5, 48652388), (10, 24326194), (19, 12803260), (20, 12163097), (38, 6401630), (76, 3200815), (95, 2560652), (190, 1280326), (380, 640163)]