27880020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:167

約数の個数: 216

約数和(自身を含む): 102702600

約数和(自身を除く): 74822580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 49, 58, 60, 63, 70, 84, 87, 90, 98, 105, 109, 116, 126, 140, 145, 147, 174, 180, 196, 203, 210, 218, 245, 252, 261, 290, 294, 315, 327, 348, 406, 420, 435, 436, 441, 490, 522, 545, 580, 588, 609, 630, 654, 735, 763, 812, 870, 882, 980, 981, 1015, 1044, 1090, 1218, 1260, 1305, 1308, 1421, 1470, 1526, 1635, 1740, 1764, 1827, 1962, 2030, 2180, 2205, 2289, 2436, 2610, 2842, 2940, 3045, 3052, 3161, 3270, 3654, 3815, 3924, 4060, 4263, 4410, 4578, 4905, 5220, 5341, 5684, 6090, 6322, 6540, 6867, 7105, 7308, 7630, 8526, 8820, 9135, 9156, 9483, 9810, 10682, 11445, 12180, 12644, 12789, 13734, 14210, 15260, 15805, 16023, 17052, 18270, 18966, 19620, 21315, 21364, 22127, 22890, 25578, 26705, 27468, 28420, 28449, 31610, 32046, 34335, 36540, 37932, 42630, 44254, 45780, 47415, 48069, 51156, 53410, 56898, 63220, 63945, 64092, 66381, 68670, 80115, 85260, 88508, 94830, 96138, 106820, 110635, 113796, 127890, 132762, 137340, 142245, 154889, 160230, 189660, 192276, 199143, 221270, 240345, 255780, 265524, 284490, 309778, 320460, 331905, 398286, 442540, 464667, 480690, 568980, 619556, 663810, 774445, 796572, 929334, 961380, 995715, 1327620, 1394001, 1548890, 1858668, 1991430, 2323335, 2788002, 3097780, 3982860, 4646670, 5576004, 6970005, 9293340, 13940010, 27880020]

約数ペア:

[(1, 27880020), (2, 13940010), (3, 9293340), (4, 6970005), (5, 5576004), (6, 4646670), (7, 3982860), (9, 3097780), (10, 2788002), (12, 2323335), (14, 1991430), (15, 1858668), (18, 1548890), (20, 1394001), (21, 1327620), (28, 995715), (29, 961380), (30, 929334), (35, 796572), (36, 774445), (42, 663810), (45, 619556), (49, 568980), (58, 480690), (60, 464667), (63, 442540), (70, 398286), (84, 331905), (87, 320460), (90, 309778), (98, 284490), (105, 265524), (109, 255780), (116, 240345), (126, 221270), (140, 199143), (145, 192276), (147, 189660), (174, 160230), (180, 154889), (196, 142245), (203, 137340), (210, 132762), (218, 127890), (245, 113796), (252, 110635), (261, 106820), (290, 96138), (294, 94830), (315, 88508), (327, 85260), (348, 80115), (406, 68670), (420, 66381), (435, 64092), (436, 63945), (441, 63220), (490, 56898), (522, 53410), (545, 51156), (580, 48069), (588, 47415), (609, 45780), (630, 44254), (654, 42630), (735, 37932), (763, 36540), (812, 34335), (870, 32046), (882, 31610), (980, 28449), (981, 28420), (1015, 27468), (1044, 26705), (1090, 25578), (1218, 22890), (1260, 22127), (1305, 21364), (1308, 21315), (1421, 19620), (1470, 18966), (1526, 18270), (1635, 17052), (1740, 16023), (1764, 15805), (1827, 15260), (1962, 14210), (2030, 13734), (2180, 12789), (2205, 12644), (2289, 12180), (2436, 11445), (2610, 10682), (2842, 9810), (2940, 9483), (3045, 9156), (3052, 9135), (3161, 8820), (3270, 8526), (3654, 7630), (3815, 7308), (3924, 7105), (4060, 6867), (4263, 6540), (4410, 6322), (4578, 6090), (4905, 5684), (5220, 5341)]