2018120860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{50227}}^1$

素因数の和:50291

約数の個数: 72

約数和(自身を含む): 5050324944

約数和(自身を除く): 3032204084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 5740, 8036, 10045, 20090, 40180, 50227, 100454, 200908, 251135, 351589, 502270, 703178, 1004540, 1406356, 1757945, 2059307, 2461123, 3515890, 4118614, 4922246, 7031780, 8237228, 9844492, 10296535, 12305615, 14415149, 20593070, 24611230, 28830298, 41186140, 49222460, 57660596, 72075745, 100906043, 144151490, 201812086, 288302980, 403624172, 504530215, 1009060430, 2018120860]

約数ペア:

[(1, 2018120860), (2, 1009060430), (4, 504530215), (5, 403624172), (7, 288302980), (10, 201812086), (14, 144151490), (20, 100906043), (28, 72075745), (35, 57660596), (41, 49222460), (49, 41186140), (70, 28830298), (82, 24611230), (98, 20593070), (140, 14415149), (164, 12305615), (196, 10296535), (205, 9844492), (245, 8237228), (287, 7031780), (410, 4922246), (490, 4118614), (574, 3515890), (820, 2461123), (980, 2059307), (1148, 1757945), (1435, 1406356), (2009, 1004540), (2870, 703178), (4018, 502270), (5740, 351589), (8036, 251135), (10045, 200908), (20090, 100454), (40180, 50227)]