20157078788

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:287

約数の個数: 216

約数和(自身を含む): 47215195776

約数和(自身を除く): 27058116988

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 41, 44, 62, 77, 82, 121, 124, 151, 154, 164, 217, 242, 287, 302, 308, 341, 434, 451, 484, 574, 604, 682, 847, 868, 902, 961, 1057, 1148, 1271, 1364, 1661, 1694, 1804, 1922, 2114, 2387, 2542, 3157, 3322, 3388, 3751, 3844, 4228, 4681, 4774, 4961, 5084, 6191, 6314, 6644, 6727, 7502, 8897, 9362, 9548, 9922, 10571, 11627, 12382, 12628, 13454, 13981, 15004, 17794, 18271, 18724, 19844, 21142, 23254, 24764, 26257, 26908, 27962, 32767, 34727, 35588, 36542, 39401, 42284, 43337, 46508, 51491, 52514, 55924, 65534, 68101, 69454, 73084, 73997, 78802, 86674, 97867, 102982, 105028, 116281, 127897, 131068, 136202, 138908, 145111, 147994, 153791, 157604, 173348, 191921, 195734, 205964, 232562, 255794, 272404, 275807, 290222, 295988, 307582, 360437, 383842, 391468, 433411, 465124, 476707, 511588, 551614, 566401, 580444, 615164, 720874, 749111, 767684, 813967, 866822, 953414, 1015777, 1076537, 1103228, 1132802, 1343447, 1441748, 1498222, 1596221, 1627934, 1733644, 1906828, 2031554, 2111131, 2153074, 2265604, 2686894, 2996444, 3033877, 3192442, 3255868, 3964807, 4063108, 4222262, 4306148, 4767521, 5243777, 5373788, 5949551, 6067754, 6384884, 7929614, 8444524, 9535042, 10487554, 11173547, 11899102, 12135508, 14777917, 15859228, 17558431, 19070084, 20975108, 22347094, 23222441, 23798204, 29555834, 33372647, 35116862, 41646857, 44694188, 46444882, 59111668, 65445061, 66745294, 70233724, 83293714, 92889764, 122909017, 130890122, 133490588, 162557087, 166587428, 245818034, 261780244, 325114174, 458115427, 491636068, 650228348, 719895671, 916230854, 1439791342, 1832461708, 2879582684, 5039269697, 10078539394, 20157078788]

約数ペア:

[(1, 20157078788), (2, 10078539394), (4, 5039269697), (7, 2879582684), (11, 1832461708), (14, 1439791342), (22, 916230854), (28, 719895671), (31, 650228348), (41, 491636068), (44, 458115427), (62, 325114174), (77, 261780244), (82, 245818034), (121, 166587428), (124, 162557087), (151, 133490588), (154, 130890122), (164, 122909017), (217, 92889764), (242, 83293714), (287, 70233724), (302, 66745294), (308, 65445061), (341, 59111668), (434, 46444882), (451, 44694188), (484, 41646857), (574, 35116862), (604, 33372647), (682, 29555834), (847, 23798204), (868, 23222441), (902, 22347094), (961, 20975108), (1057, 19070084), (1148, 17558431), (1271, 15859228), (1364, 14777917), (1661, 12135508), (1694, 11899102), (1804, 11173547), (1922, 10487554), (2114, 9535042), (2387, 8444524), (2542, 7929614), (3157, 6384884), (3322, 6067754), (3388, 5949551), (3751, 5373788), (3844, 5243777), (4228, 4767521), (4681, 4306148), (4774, 4222262), (4961, 4063108), (5084, 3964807), (6191, 3255868), (6314, 3192442), (6644, 3033877), (6727, 2996444), (7502, 2686894), (8897, 2265604), (9362, 2153074), (9548, 2111131), (9922, 2031554), (10571, 1906828), (11627, 1733644), (12382, 1627934), (12628, 1596221), (13454, 1498222), (13981, 1441748), (15004, 1343447), (17794, 1132802), (18271, 1103228), (18724, 1076537), (19844, 1015777), (21142, 953414), (23254, 866822), (24764, 813967), (26257, 767684), (26908, 749111), (27962, 720874), (32767, 615164), (34727, 580444), (35588, 566401), (36542, 551614), (39401, 511588), (42284, 476707), (43337, 465124), (46508, 433411), (51491, 391468), (52514, 383842), (55924, 360437), (65534, 307582), (68101, 295988), (69454, 290222), (73084, 275807), (73997, 272404), (78802, 255794), (86674, 232562), (97867, 205964), (102982, 195734), (105028, 191921), (116281, 173348), (127897, 157604), (131068, 153791), (136202, 147994), (138908, 145111)]