20018700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:121

約数の個数: 216

約数和(自身を含む): 71089200

約数和(自身を除く): 51070500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 29, 30, 36, 39, 45, 50, 52, 58, 59, 60, 65, 75, 78, 87, 90, 100, 116, 117, 118, 130, 145, 150, 156, 174, 177, 180, 195, 225, 234, 236, 260, 261, 290, 295, 300, 325, 348, 354, 377, 390, 435, 450, 468, 522, 531, 580, 585, 590, 650, 708, 725, 754, 767, 780, 870, 885, 900, 975, 1044, 1062, 1131, 1170, 1180, 1300, 1305, 1450, 1475, 1508, 1534, 1711, 1740, 1770, 1885, 1950, 2124, 2175, 2262, 2301, 2340, 2610, 2655, 2900, 2925, 2950, 3068, 3393, 3422, 3540, 3770, 3835, 3900, 4350, 4425, 4524, 4602, 5133, 5220, 5310, 5655, 5850, 5900, 6525, 6786, 6844, 6903, 7540, 7670, 8555, 8700, 8850, 9204, 9425, 10266, 10620, 11310, 11505, 11700, 13050, 13275, 13572, 13806, 15340, 15399, 16965, 17110, 17700, 18850, 19175, 20532, 22243, 22620, 23010, 25665, 26100, 26550, 27612, 28275, 30798, 33930, 34220, 34515, 37700, 38350, 42775, 44486, 46020, 51330, 53100, 56550, 57525, 61596, 66729, 67860, 69030, 76700, 76995, 84825, 85550, 88972, 102660, 111215, 113100, 115050, 128325, 133458, 138060, 153990, 169650, 171100, 172575, 200187, 222430, 230100, 256650, 266916, 307980, 333645, 339300, 345150, 384975, 400374, 444860, 513300, 556075, 667290, 690300, 769950, 800748, 1000935, 1112150, 1334580, 1539900, 1668225, 2001870, 2224300, 3336450, 4003740, 5004675, 6672900, 10009350, 20018700]

約数ペア:

[(1, 20018700), (2, 10009350), (3, 6672900), (4, 5004675), (5, 4003740), (6, 3336450), (9, 2224300), (10, 2001870), (12, 1668225), (13, 1539900), (15, 1334580), (18, 1112150), (20, 1000935), (25, 800748), (26, 769950), (29, 690300), (30, 667290), (36, 556075), (39, 513300), (45, 444860), (50, 400374), (52, 384975), (58, 345150), (59, 339300), (60, 333645), (65, 307980), (75, 266916), (78, 256650), (87, 230100), (90, 222430), (100, 200187), (116, 172575), (117, 171100), (118, 169650), (130, 153990), (145, 138060), (150, 133458), (156, 128325), (174, 115050), (177, 113100), (180, 111215), (195, 102660), (225, 88972), (234, 85550), (236, 84825), (260, 76995), (261, 76700), (290, 69030), (295, 67860), (300, 66729), (325, 61596), (348, 57525), (354, 56550), (377, 53100), (390, 51330), (435, 46020), (450, 44486), (468, 42775), (522, 38350), (531, 37700), (580, 34515), (585, 34220), (590, 33930), (650, 30798), (708, 28275), (725, 27612), (754, 26550), (767, 26100), (780, 25665), (870, 23010), (885, 22620), (900, 22243), (975, 20532), (1044, 19175), (1062, 18850), (1131, 17700), (1170, 17110), (1180, 16965), (1300, 15399), (1305, 15340), (1450, 13806), (1475, 13572), (1508, 13275), (1534, 13050), (1711, 11700), (1740, 11505), (1770, 11310), (1885, 10620), (1950, 10266), (2124, 9425), (2175, 9204), (2262, 8850), (2301, 8700), (2340, 8555), (2610, 7670), (2655, 7540), (2900, 6903), (2925, 6844), (2950, 6786), (3068, 6525), (3393, 5900), (3422, 5850), (3540, 5655), (3770, 5310), (3835, 5220), (3900, 5133), (4350, 4602), (4425, 4524)]