1304380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^3$

素因数の和:56

約数の個数: 72

約数和(自身を含む): 3504816

約数和(自身を除く): 2200436

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 196, 220, 242, 245, 308, 385, 484, 490, 539, 605, 770, 847, 980, 1078, 1210, 1331, 1540, 1694, 2156, 2420, 2662, 2695, 3388, 4235, 5324, 5390, 5929, 6655, 8470, 9317, 10780, 11858, 13310, 16940, 18634, 23716, 26620, 29645, 37268, 46585, 59290, 65219, 93170, 118580, 130438, 186340, 260876, 326095, 652190, 1304380]

約数ペア:

[(1, 1304380), (2, 652190), (4, 326095), (5, 260876), (7, 186340), (10, 130438), (11, 118580), (14, 93170), (20, 65219), (22, 59290), (28, 46585), (35, 37268), (44, 29645), (49, 26620), (55, 23716), (70, 18634), (77, 16940), (98, 13310), (110, 11858), (121, 10780), (140, 9317), (154, 8470), (196, 6655), (220, 5929), (242, 5390), (245, 5324), (308, 4235), (385, 3388), (484, 2695), (490, 2662), (539, 2420), (605, 2156), (770, 1694), (847, 1540), (980, 1331), (1078, 1210)]