401232580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{401}}^1\times {\mathrm{1021}}^1$

素因数の和:1445

約数の個数: 72

約数和(自身を含む): 983560536

約数和(自身を除く): 582327956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 401, 490, 802, 980, 1021, 1604, 2005, 2042, 2807, 4010, 4084, 5105, 5614, 7147, 8020, 10210, 11228, 14035, 14294, 19649, 20420, 28070, 28588, 35735, 39298, 50029, 56140, 71470, 78596, 98245, 100058, 142940, 196490, 200116, 250145, 392980, 409421, 500290, 818842, 1000580, 1637684, 2047105, 2865947, 4094210, 5731894, 8188420, 11463788, 14329735, 20061629, 28659470, 40123258, 57318940, 80246516, 100308145, 200616290, 401232580]

約数ペア:

[(1, 401232580), (2, 200616290), (4, 100308145), (5, 80246516), (7, 57318940), (10, 40123258), (14, 28659470), (20, 20061629), (28, 14329735), (35, 11463788), (49, 8188420), (70, 5731894), (98, 4094210), (140, 2865947), (196, 2047105), (245, 1637684), (401, 1000580), (490, 818842), (802, 500290), (980, 409421), (1021, 392980), (1604, 250145), (2005, 200116), (2042, 196490), (2807, 142940), (4010, 100058), (4084, 98245), (5105, 78596), (5614, 71470), (7147, 56140), (8020, 50029), (10210, 39298), (11228, 35735), (14035, 28588), (14294, 28070), (19649, 20420)]