28642900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2003}}^1$

素因数の和:2041

約数の個数: 72

約数和(自身を含む): 73057824

約数和(自身を除く): 44414924

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 220, 260, 275, 286, 325, 550, 572, 650, 715, 1100, 1300, 1430, 2003, 2860, 3575, 4006, 7150, 8012, 10015, 14300, 20030, 22033, 26039, 40060, 44066, 50075, 52078, 88132, 100150, 104156, 110165, 130195, 200300, 220330, 260390, 286429, 440660, 520780, 550825, 572858, 650975, 1101650, 1145716, 1301950, 1432145, 2203300, 2603900, 2864290, 5728580, 7160725, 14321450, 28642900]

約数ペア:

[(1, 28642900), (2, 14321450), (4, 7160725), (5, 5728580), (10, 2864290), (11, 2603900), (13, 2203300), (20, 1432145), (22, 1301950), (25, 1145716), (26, 1101650), (44, 650975), (50, 572858), (52, 550825), (55, 520780), (65, 440660), (100, 286429), (110, 260390), (130, 220330), (143, 200300), (220, 130195), (260, 110165), (275, 104156), (286, 100150), (325, 88132), (550, 52078), (572, 50075), (650, 44066), (715, 40060), (1100, 26039), (1300, 22033), (1430, 20030), (2003, 14300), (2860, 10015), (3575, 8012), (4006, 7150)]