19916471296

素因数分解:

$2^{10}\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{547}}^1$

素因数の和:666

約数の個数: 132

約数和(自身を含む): 42328340904

約数和(自身を除く): 22411869608

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 128, 148, 248, 256, 296, 496, 512, 547, 592, 961, 992, 1024, 1094, 1147, 1184, 1922, 1984, 2188, 2294, 2368, 3844, 3968, 4376, 4588, 4736, 7688, 7936, 8752, 9176, 9472, 15376, 15872, 16957, 17504, 18352, 18944, 20239, 30752, 31744, 33914, 35008, 35557, 36704, 37888, 40478, 61504, 67828, 70016, 71114, 73408, 80956, 123008, 135656, 140032, 142228, 146816, 161912, 246016, 271312, 280064, 284456, 293632, 323824, 492032, 525667, 542624, 560128, 568912, 587264, 627409, 647648, 984064, 1051334, 1085248, 1137824, 1174528, 1254818, 1295296, 2102668, 2170496, 2275648, 2509636, 2590592, 4205336, 4340992, 4551296, 5019272, 5181184, 8410672, 8681984, 9102592, 10038544, 10362368, 16821344, 17363968, 18205184, 19449679, 20077088, 20724736, 33642688, 36410368, 38899358, 40154176, 67285376, 77798716, 80308352, 134570752, 155597432, 160616704, 269141504, 311194864, 321233408, 538283008, 622389728, 642466816, 1244779456, 2489558912, 4979117824, 9958235648, 19916471296]

約数ペア:

[(1, 19916471296), (2, 9958235648), (4, 4979117824), (8, 2489558912), (16, 1244779456), (31, 642466816), (32, 622389728), (37, 538283008), (62, 321233408), (64, 311194864), (74, 269141504), (124, 160616704), (128, 155597432), (148, 134570752), (248, 80308352), (256, 77798716), (296, 67285376), (496, 40154176), (512, 38899358), (547, 36410368), (592, 33642688), (961, 20724736), (992, 20077088), (1024, 19449679), (1094, 18205184), (1147, 17363968), (1184, 16821344), (1922, 10362368), (1984, 10038544), (2188, 9102592), (2294, 8681984), (2368, 8410672), (3844, 5181184), (3968, 5019272), (4376, 4551296), (4588, 4340992), (4736, 4205336), (7688, 2590592), (7936, 2509636), (8752, 2275648), (9176, 2170496), (9472, 2102668), (15376, 1295296), (15872, 1254818), (16957, 1174528), (17504, 1137824), (18352, 1085248), (18944, 1051334), (20239, 984064), (30752, 647648), (31744, 627409), (33914, 587264), (35008, 568912), (35557, 560128), (36704, 542624), (37888, 525667), (40478, 492032), (61504, 323824), (67828, 293632), (70016, 284456), (71114, 280064), (73408, 271312), (80956, 246016), (123008, 161912), (135656, 146816), (140032, 142228)]