2788982800

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{71881}}^1$

素因数の和:71996

約数の個数: 60

約数和(自身を含む): 6769702996

約数和(自身を除く): 3980720196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 970, 1552, 1940, 2425, 3880, 4850, 7760, 9700, 19400, 38800, 71881, 143762, 287524, 359405, 575048, 718810, 1150096, 1437620, 1797025, 2875240, 3594050, 5750480, 6972457, 7188100, 13944914, 14376200, 27889828, 28752400, 34862285, 55779656, 69724570, 111559312, 139449140, 174311425, 278898280, 348622850, 557796560, 697245700, 1394491400, 2788982800]

約数ペア:

[(1, 2788982800), (2, 1394491400), (4, 697245700), (5, 557796560), (8, 348622850), (10, 278898280), (16, 174311425), (20, 139449140), (25, 111559312), (40, 69724570), (50, 55779656), (80, 34862285), (97, 28752400), (100, 27889828), (194, 14376200), (200, 13944914), (388, 7188100), (400, 6972457), (485, 5750480), (776, 3594050), (970, 2875240), (1552, 1797025), (1940, 1437620), (2425, 1150096), (3880, 718810), (4850, 575048), (7760, 359405), (9700, 287524), (19400, 143762), (38800, 71881)]