20161008400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{19483}}^1$

素因数の和:19713

約数の個数: 120

約数和(自身を含む): 52427547200

約数和(自身を除く): 32266538800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 199, 200, 208, 260, 325, 398, 400, 520, 650, 796, 995, 1040, 1300, 1592, 1990, 2587, 2600, 3184, 3980, 4975, 5174, 5200, 7960, 9950, 10348, 12935, 15920, 19483, 19900, 20696, 25870, 38966, 39800, 41392, 51740, 64675, 77932, 79600, 97415, 103480, 129350, 155864, 194830, 206960, 253279, 258700, 311728, 389660, 487075, 506558, 517400, 779320, 974150, 1013116, 1034800, 1266395, 1558640, 1948300, 2026232, 2532790, 3877117, 3896600, 4052464, 5065580, 6331975, 7754234, 7793200, 10131160, 12663950, 15508468, 19385585, 20262320, 25327900, 31016936, 38771170, 50402521, 50655800, 62033872, 77542340, 96927925, 100805042, 101311600, 155084680, 193855850, 201610084, 252012605, 310169360, 387711700, 403220168, 504025210, 775423400, 806440336, 1008050420, 1260063025, 1550846800, 2016100840, 2520126050, 4032201680, 5040252100, 10080504200, 20161008400]

約数ペア:

[(1, 20161008400), (2, 10080504200), (4, 5040252100), (5, 4032201680), (8, 2520126050), (10, 2016100840), (13, 1550846800), (16, 1260063025), (20, 1008050420), (25, 806440336), (26, 775423400), (40, 504025210), (50, 403220168), (52, 387711700), (65, 310169360), (80, 252012605), (100, 201610084), (104, 193855850), (130, 155084680), (199, 101311600), (200, 100805042), (208, 96927925), (260, 77542340), (325, 62033872), (398, 50655800), (400, 50402521), (520, 38771170), (650, 31016936), (796, 25327900), (995, 20262320), (1040, 19385585), (1300, 15508468), (1592, 12663950), (1990, 10131160), (2587, 7793200), (2600, 7754234), (3184, 6331975), (3980, 5065580), (4975, 4052464), (5174, 3896600), (5200, 3877117), (7960, 2532790), (9950, 2026232), (10348, 1948300), (12935, 1558640), (15920, 1266395), (19483, 1034800), (19900, 1013116), (20696, 974150), (25870, 779320), (38966, 517400), (39800, 506558), (41392, 487075), (51740, 389660), (64675, 311728), (77932, 258700), (79600, 253279), (97415, 206960), (103480, 194830), (129350, 155864)]