208087740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{691}}^1$

素因数の和:952

約数の個数: 144

約数和(自身を含む): 725437440

約数和(自身を除く): 517349700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 239, 252, 315, 420, 478, 630, 691, 717, 956, 1195, 1260, 1382, 1434, 1673, 2073, 2151, 2390, 2764, 2868, 3346, 3455, 3585, 4146, 4302, 4780, 4837, 5019, 6219, 6692, 6910, 7170, 8292, 8365, 8604, 9674, 10038, 10365, 10755, 12438, 13820, 14340, 14511, 15057, 16730, 19348, 20076, 20730, 21510, 24185, 24876, 25095, 29022, 30114, 31095, 33460, 41460, 43020, 43533, 48370, 50190, 58044, 60228, 62190, 72555, 75285, 87066, 96740, 100380, 124380, 145110, 150570, 165149, 174132, 217665, 290220, 301140, 330298, 435330, 495447, 660596, 825745, 870660, 990894, 1156043, 1486341, 1651490, 1981788, 2312086, 2477235, 2972682, 3302980, 3468129, 4624172, 4954470, 5780215, 5945364, 6936258, 7431705, 9908940, 10404387, 11560430, 13872516, 14863410, 17340645, 20808774, 23120860, 29726820, 34681290, 41617548, 52021935, 69362580, 104043870, 208087740]

約数ペア:

[(1, 208087740), (2, 104043870), (3, 69362580), (4, 52021935), (5, 41617548), (6, 34681290), (7, 29726820), (9, 23120860), (10, 20808774), (12, 17340645), (14, 14863410), (15, 13872516), (18, 11560430), (20, 10404387), (21, 9908940), (28, 7431705), (30, 6936258), (35, 5945364), (36, 5780215), (42, 4954470), (45, 4624172), (60, 3468129), (63, 3302980), (70, 2972682), (84, 2477235), (90, 2312086), (105, 1981788), (126, 1651490), (140, 1486341), (180, 1156043), (210, 990894), (239, 870660), (252, 825745), (315, 660596), (420, 495447), (478, 435330), (630, 330298), (691, 301140), (717, 290220), (956, 217665), (1195, 174132), (1260, 165149), (1382, 150570), (1434, 145110), (1673, 124380), (2073, 100380), (2151, 96740), (2390, 87066), (2764, 75285), (2868, 72555), (3346, 62190), (3455, 60228), (3585, 58044), (4146, 50190), (4302, 48370), (4780, 43533), (4837, 43020), (5019, 41460), (6219, 33460), (6692, 31095), (6910, 30114), (7170, 29022), (8292, 25095), (8365, 24876), (8604, 24185), (9674, 21510), (10038, 20730), (10365, 20076), (10755, 19348), (12438, 16730), (13820, 15057), (14340, 14511)]