2019431375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 2806562304

約数和(自身を除く): 787130929

約数列:

[1, 5, 13, 25, 47, 65, 125, 137, 193, 235, 325, 611, 685, 965, 1175, 1625, 1781, 2509, 3055, 3425, 4825, 5875, 6439, 8905, 9071, 12545, 15275, 17125, 24125, 26441, 32195, 44525, 45355, 62725, 76375, 83707, 117923, 132205, 160975, 222625, 226775, 313625, 343733, 418535, 589615, 661025, 804875, 1133875, 1242727, 1718665, 2092675, 2948075, 3305125, 6213635, 8593325, 10463375, 14740375, 16155451, 31068175, 42966625, 80777255, 155340875, 403886275, 2019431375]

約数ペア:

[(1, 2019431375), (5, 403886275), (13, 155340875), (25, 80777255), (47, 42966625), (65, 31068175), (125, 16155451), (137, 14740375), (193, 10463375), (235, 8593325), (325, 6213635), (611, 3305125), (685, 2948075), (965, 2092675), (1175, 1718665), (1625, 1242727), (1781, 1133875), (2509, 804875), (3055, 661025), (3425, 589615), (4825, 418535), (5875, 343733), (6439, 313625), (8905, 226775), (9071, 222625), (12545, 160975), (15275, 132205), (17125, 117923), (24125, 83707), (26441, 76375), (32195, 62725), (44525, 45355)]