20515320

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1163}}^1$

素因数の和:1194

約数の個数: 144

約数和(自身を含む): 77627160

約数和(自身を除く): 57111840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1163, 1176, 1260, 1470, 1764, 1960, 2205, 2326, 2520, 2940, 3489, 3528, 4410, 4652, 5815, 5880, 6978, 8141, 8820, 9304, 10467, 11630, 13956, 16282, 17445, 17640, 20934, 23260, 24423, 27912, 32564, 34890, 40705, 41868, 46520, 48846, 52335, 56987, 65128, 69780, 73269, 81410, 83736, 97692, 104670, 113974, 122115, 139560, 146538, 162820, 170961, 195384, 209340, 227948, 244230, 284935, 293076, 325640, 341922, 366345, 418680, 455896, 488460, 512883, 569870, 586152, 683844, 732690, 854805, 976920, 1025766, 1139740, 1367688, 1465380, 1709610, 2051532, 2279480, 2564415, 2930760, 3419220, 4103064, 5128830, 6838440, 10257660, 20515320]

約数ペア:

[(1, 20515320), (2, 10257660), (3, 6838440), (4, 5128830), (5, 4103064), (6, 3419220), (7, 2930760), (8, 2564415), (9, 2279480), (10, 2051532), (12, 1709610), (14, 1465380), (15, 1367688), (18, 1139740), (20, 1025766), (21, 976920), (24, 854805), (28, 732690), (30, 683844), (35, 586152), (36, 569870), (40, 512883), (42, 488460), (45, 455896), (49, 418680), (56, 366345), (60, 341922), (63, 325640), (70, 293076), (72, 284935), (84, 244230), (90, 227948), (98, 209340), (105, 195384), (120, 170961), (126, 162820), (140, 146538), (147, 139560), (168, 122115), (180, 113974), (196, 104670), (210, 97692), (245, 83736), (252, 81410), (280, 73269), (294, 69780), (315, 65128), (360, 56987), (392, 52335), (420, 48846), (441, 46520), (490, 41868), (504, 40705), (588, 34890), (630, 32564), (735, 27912), (840, 24423), (882, 23260), (980, 20934), (1163, 17640), (1176, 17445), (1260, 16282), (1470, 13956), (1764, 11630), (1960, 10467), (2205, 9304), (2326, 8820), (2520, 8141), (2940, 6978), (3489, 5880), (3528, 5815), (4410, 4652)]