20185984140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{2311}}^1\times {\mathrm{2971}}^1$

素因数の和:5308

約数の個数: 144

約数和(自身を含む): 65799224064

約数和(自身を除く): 45613239924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2311, 2940, 2971, 4622, 5942, 6933, 8913, 9244, 11555, 11884, 13866, 14855, 16177, 17826, 20797, 23110, 27732, 29710, 32354, 34665, 35652, 41594, 44565, 46220, 48531, 59420, 62391, 64708, 69330, 80885, 83188, 89130, 97062, 103985, 113239, 124782, 138660, 145579, 161770, 178260, 194124, 207970, 226478, 242655, 249564, 291158, 311955, 323540, 339717, 415940, 436737, 452956, 485310, 566195, 582316, 623910, 679434, 727895, 873474, 970620, 1132390, 1247820, 1358868, 1455790, 1698585, 1746948, 2183685, 2264780, 2911580, 3397170, 4367370, 6794340, 6865981, 8734740, 13731962, 20597943, 27463924, 34329905, 41195886, 48061867, 68659810, 82391772, 96123734, 102989715, 137319620, 144185601, 192247468, 205979430, 240309335, 288371202, 336433069, 411958860, 480618670, 576742404, 672866138, 720928005, 961237340, 1009299207, 1345732276, 1441856010, 1682165345, 2018598414, 2883712020, 3364330690, 4037196828, 5046496035, 6728661380, 10092992070, 20185984140]

約数ペア:

[(1, 20185984140), (2, 10092992070), (3, 6728661380), (4, 5046496035), (5, 4037196828), (6, 3364330690), (7, 2883712020), (10, 2018598414), (12, 1682165345), (14, 1441856010), (15, 1345732276), (20, 1009299207), (21, 961237340), (28, 720928005), (30, 672866138), (35, 576742404), (42, 480618670), (49, 411958860), (60, 336433069), (70, 288371202), (84, 240309335), (98, 205979430), (105, 192247468), (140, 144185601), (147, 137319620), (196, 102989715), (210, 96123734), (245, 82391772), (294, 68659810), (420, 48061867), (490, 41195886), (588, 34329905), (735, 27463924), (980, 20597943), (1470, 13731962), (2311, 8734740), (2940, 6865981), (2971, 6794340), (4622, 4367370), (5942, 3397170), (6933, 2911580), (8913, 2264780), (9244, 2183685), (11555, 1746948), (11884, 1698585), (13866, 1455790), (14855, 1358868), (16177, 1247820), (17826, 1132390), (20797, 970620), (23110, 873474), (27732, 727895), (29710, 679434), (32354, 623910), (34665, 582316), (35652, 566195), (41594, 485310), (44565, 452956), (46220, 436737), (48531, 415940), (59420, 339717), (62391, 323540), (64708, 311955), (69330, 291158), (80885, 249564), (83188, 242655), (89130, 226478), (97062, 207970), (103985, 194124), (113239, 178260), (124782, 161770), (138660, 145579)]