1900990084

素因数分解:

$2^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{881}}^1$

素因数の和:1109

約数の個数: 72

約数和(自身を含む): 3948519960

約数和(自身を除く): 2047529876

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 101, 109, 196, 202, 218, 404, 436, 707, 763, 881, 1414, 1526, 1762, 2828, 3052, 3524, 4949, 5341, 6167, 9898, 10682, 11009, 12334, 19796, 21364, 22018, 24668, 43169, 44036, 77063, 86338, 88981, 96029, 154126, 172676, 177962, 192058, 308252, 355924, 384116, 539441, 622867, 672203, 1078882, 1245734, 1344406, 2157764, 2491468, 2688812, 4360069, 4705421, 8720138, 9410842, 9698929, 17440276, 18821684, 19397858, 38795716, 67892503, 135785006, 271570012, 475247521, 950495042, 1900990084]

約数ペア:

[(1, 1900990084), (2, 950495042), (4, 475247521), (7, 271570012), (14, 135785006), (28, 67892503), (49, 38795716), (98, 19397858), (101, 18821684), (109, 17440276), (196, 9698929), (202, 9410842), (218, 8720138), (404, 4705421), (436, 4360069), (707, 2688812), (763, 2491468), (881, 2157764), (1414, 1344406), (1526, 1245734), (1762, 1078882), (2828, 672203), (3052, 622867), (3524, 539441), (4949, 384116), (5341, 355924), (6167, 308252), (9898, 192058), (10682, 177962), (11009, 172676), (12334, 154126), (19796, 96029), (21364, 88981), (22018, 86338), (24668, 77063), (43169, 44036)]