19011020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1063

約数の個数: 72

約数和(自身を含む): 48933360

約数和(自身を除く): 29922340

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1021, 1330, 1862, 2042, 2660, 3724, 4084, 4655, 5105, 7147, 9310, 10210, 14294, 18620, 19399, 20420, 28588, 35735, 38798, 50029, 71470, 77596, 96995, 100058, 135793, 142940, 193990, 200116, 250145, 271586, 387980, 500290, 543172, 678965, 950551, 1000580, 1357930, 1901102, 2715860, 3802204, 4752755, 9505510, 19011020]

約数ペア:

[(1, 19011020), (2, 9505510), (4, 4752755), (5, 3802204), (7, 2715860), (10, 1901102), (14, 1357930), (19, 1000580), (20, 950551), (28, 678965), (35, 543172), (38, 500290), (49, 387980), (70, 271586), (76, 250145), (95, 200116), (98, 193990), (133, 142940), (140, 135793), (190, 100058), (196, 96995), (245, 77596), (266, 71470), (380, 50029), (490, 38798), (532, 35735), (665, 28588), (931, 20420), (980, 19399), (1021, 18620), (1330, 14294), (1862, 10210), (2042, 9310), (2660, 7147), (3724, 5105), (4084, 4655)]