20216353500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{641789}}^1$

素因数の和:641821

約数の個数: 144

約数和(自身を含む): 72886806720

約数和(自身を除く): 52670453220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 700, 750, 875, 900, 1050, 1125, 1260, 1500, 1575, 1750, 2100, 2250, 2625, 3150, 3500, 4500, 5250, 6300, 7875, 10500, 15750, 31500, 641789, 1283578, 1925367, 2567156, 3208945, 3850734, 4492523, 5776101, 6417890, 7701468, 8985046, 9626835, 11552202, 12835780, 13477569, 16044725, 17970092, 19253670, 22462615, 23104404, 26955138, 28880505, 32089450, 38507340, 40432707, 44925230, 48134175, 53910276, 57761010, 64178900, 67387845, 80223625, 80865414, 89850460, 96268350, 112313075, 115522020, 134775690, 144402525, 160447250, 161730828, 192536700, 202163535, 224626150, 240670875, 269551380, 288805050, 320894500, 336939225, 404327070, 449252300, 481341750, 561565375, 577610100, 673878450, 722012625, 808654140, 962683500, 1010817675, 1123130750, 1347756900, 1444025250, 1684696125, 2021635350, 2246261500, 2888050500, 3369392250, 4043270700, 5054088375, 6738784500, 10108176750, 20216353500]

約数ペア:

[(1, 20216353500), (2, 10108176750), (3, 6738784500), (4, 5054088375), (5, 4043270700), (6, 3369392250), (7, 2888050500), (9, 2246261500), (10, 2021635350), (12, 1684696125), (14, 1444025250), (15, 1347756900), (18, 1123130750), (20, 1010817675), (21, 962683500), (25, 808654140), (28, 722012625), (30, 673878450), (35, 577610100), (36, 561565375), (42, 481341750), (45, 449252300), (50, 404327070), (60, 336939225), (63, 320894500), (70, 288805050), (75, 269551380), (84, 240670875), (90, 224626150), (100, 202163535), (105, 192536700), (125, 161730828), (126, 160447250), (140, 144402525), (150, 134775690), (175, 115522020), (180, 112313075), (210, 96268350), (225, 89850460), (250, 80865414), (252, 80223625), (300, 67387845), (315, 64178900), (350, 57761010), (375, 53910276), (420, 48134175), (450, 44925230), (500, 40432707), (525, 38507340), (630, 32089450), (700, 28880505), (750, 26955138), (875, 23104404), (900, 22462615), (1050, 19253670), (1125, 17970092), (1260, 16044725), (1500, 13477569), (1575, 12835780), (1750, 11552202), (2100, 9626835), (2250, 8985046), (2625, 7701468), (3150, 6417890), (3500, 5776101), (4500, 4492523), (5250, 3850734), (6300, 3208945), (7875, 2567156), (10500, 1925367), (15750, 1283578), (31500, 641789)]