21785611750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{1181}}^1$

素因数の和:1415

約数の個数: 128

約数和(自身を含む): 47581986816

約数和(自身を除く): 25796375066

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 83, 125, 127, 166, 175, 250, 254, 350, 415, 581, 635, 830, 875, 889, 1162, 1181, 1270, 1750, 1778, 2075, 2362, 2905, 3175, 4150, 4445, 5810, 5905, 6350, 8267, 8890, 10375, 10541, 11810, 14525, 15875, 16534, 20750, 21082, 22225, 29050, 29525, 31750, 41335, 44450, 52705, 59050, 72625, 73787, 82670, 98023, 105410, 111125, 145250, 147574, 147625, 149987, 196046, 206675, 222250, 263525, 295250, 299974, 368935, 413350, 490115, 527050, 686161, 737870, 749935, 980230, 1033375, 1049909, 1317625, 1372322, 1499870, 1844675, 2066750, 2099818, 2450575, 2635250, 3430805, 3689350, 3749675, 4901150, 5249545, 6861610, 7499350, 9223375, 10499090, 12252875, 12448921, 17154025, 18446750, 18748375, 24505750, 24897842, 26247725, 34308050, 37496750, 52495450, 62244605, 85770125, 87142447, 124489210, 131238625, 171540250, 174284894, 262477250, 311223025, 435712235, 622446050, 871424470, 1556115125, 2178561175, 3112230250, 4357122350, 10892805875, 21785611750]

約数ペア:

[(1, 21785611750), (2, 10892805875), (5, 4357122350), (7, 3112230250), (10, 2178561175), (14, 1556115125), (25, 871424470), (35, 622446050), (50, 435712235), (70, 311223025), (83, 262477250), (125, 174284894), (127, 171540250), (166, 131238625), (175, 124489210), (250, 87142447), (254, 85770125), (350, 62244605), (415, 52495450), (581, 37496750), (635, 34308050), (830, 26247725), (875, 24897842), (889, 24505750), (1162, 18748375), (1181, 18446750), (1270, 17154025), (1750, 12448921), (1778, 12252875), (2075, 10499090), (2362, 9223375), (2905, 7499350), (3175, 6861610), (4150, 5249545), (4445, 4901150), (5810, 3749675), (5905, 3689350), (6350, 3430805), (8267, 2635250), (8890, 2450575), (10375, 2099818), (10541, 2066750), (11810, 1844675), (14525, 1499870), (15875, 1372322), (16534, 1317625), (20750, 1049909), (21082, 1033375), (22225, 980230), (29050, 749935), (29525, 737870), (31750, 686161), (41335, 527050), (44450, 490115), (52705, 413350), (59050, 368935), (72625, 299974), (73787, 295250), (82670, 263525), (98023, 222250), (105410, 206675), (111125, 196046), (145250, 149987), (147574, 147625)]