20211454900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{11161}}^1$

素因数の和:11394

約数の個数: 144

約数和(自身を含む): 54256249600

約数和(自身を除く): 34044794700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 199, 260, 325, 350, 364, 398, 455, 650, 700, 796, 910, 995, 1300, 1393, 1820, 1990, 2275, 2587, 2786, 3980, 4550, 4975, 5174, 5572, 6965, 9100, 9950, 10348, 11161, 12935, 13930, 18109, 19900, 22322, 25870, 27860, 34825, 36218, 44644, 51740, 55805, 64675, 69650, 72436, 78127, 90545, 111610, 129350, 139300, 145093, 156254, 181090, 223220, 258700, 279025, 290186, 312508, 362180, 390635, 452725, 558050, 580372, 725465, 781270, 905450, 1015651, 1116100, 1450930, 1562540, 1810900, 1953175, 2031302, 2221039, 2901860, 3627325, 3906350, 4062604, 4442078, 5078255, 7254650, 7812700, 8884156, 10156510, 11105195, 14509300, 15547273, 20313020, 22210390, 25391275, 28873507, 31094546, 44420780, 50782550, 55525975, 57747014, 62189092, 77736365, 101565100, 111051950, 115494028, 144367535, 155472730, 202114549, 222103900, 288735070, 310945460, 388681825, 404229098, 577470140, 721837675, 777363650, 808458196, 1010572745, 1443675350, 1554727300, 2021145490, 2887350700, 4042290980, 5052863725, 10105727450, 20211454900]

約数ペア:

[(1, 20211454900), (2, 10105727450), (4, 5052863725), (5, 4042290980), (7, 2887350700), (10, 2021145490), (13, 1554727300), (14, 1443675350), (20, 1010572745), (25, 808458196), (26, 777363650), (28, 721837675), (35, 577470140), (50, 404229098), (52, 388681825), (65, 310945460), (70, 288735070), (91, 222103900), (100, 202114549), (130, 155472730), (140, 144367535), (175, 115494028), (182, 111051950), (199, 101565100), (260, 77736365), (325, 62189092), (350, 57747014), (364, 55525975), (398, 50782550), (455, 44420780), (650, 31094546), (700, 28873507), (796, 25391275), (910, 22210390), (995, 20313020), (1300, 15547273), (1393, 14509300), (1820, 11105195), (1990, 10156510), (2275, 8884156), (2587, 7812700), (2786, 7254650), (3980, 5078255), (4550, 4442078), (4975, 4062604), (5174, 3906350), (5572, 3627325), (6965, 2901860), (9100, 2221039), (9950, 2031302), (10348, 1953175), (11161, 1810900), (12935, 1562540), (13930, 1450930), (18109, 1116100), (19900, 1015651), (22322, 905450), (25870, 781270), (27860, 725465), (34825, 580372), (36218, 558050), (44644, 452725), (51740, 390635), (55805, 362180), (64675, 312508), (69650, 290186), (72436, 279025), (78127, 258700), (90545, 223220), (111610, 181090), (129350, 156254), (139300, 145093)]