20494942208

素因数分解:

$2^{19}\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 160

約数和(自身を含む): 46036636800

約数和(自身を除く): 25541694592

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 97, 104, 124, 128, 194, 208, 248, 256, 388, 403, 416, 496, 512, 776, 806, 832, 992, 1024, 1261, 1552, 1612, 1664, 1984, 2048, 2522, 3007, 3104, 3224, 3328, 3968, 4096, 5044, 6014, 6208, 6448, 6656, 7936, 8192, 10088, 12028, 12416, 12896, 13312, 15872, 16384, 20176, 24056, 24832, 25792, 26624, 31744, 32768, 39091, 40352, 48112, 49664, 51584, 53248, 63488, 65536, 78182, 80704, 96224, 99328, 103168, 106496, 126976, 131072, 156364, 161408, 192448, 198656, 206336, 212992, 253952, 262144, 312728, 322816, 384896, 397312, 412672, 425984, 507904, 524288, 625456, 645632, 769792, 794624, 825344, 851968, 1015808, 1250912, 1291264, 1539584, 1589248, 1650688, 1703936, 2031616, 2501824, 2582528, 3079168, 3178496, 3301376, 3407872, 4063232, 5003648, 5165056, 6158336, 6356992, 6602752, 6815744, 8126464, 10007296, 10330112, 12316672, 12713984, 13205504, 16252928, 20014592, 20660224, 24633344, 25427968, 26411008, 40029184, 41320448, 49266688, 50855936, 52822016, 80058368, 82640896, 98533376, 105644032, 160116736, 165281792, 197066752, 211288064, 320233472, 330563584, 394133504, 640466944, 661127168, 788267008, 1280933888, 1576534016, 2561867776, 5123735552, 10247471104, 20494942208]

約数ペア:

[(1, 20494942208), (2, 10247471104), (4, 5123735552), (8, 2561867776), (13, 1576534016), (16, 1280933888), (26, 788267008), (31, 661127168), (32, 640466944), (52, 394133504), (62, 330563584), (64, 320233472), (97, 211288064), (104, 197066752), (124, 165281792), (128, 160116736), (194, 105644032), (208, 98533376), (248, 82640896), (256, 80058368), (388, 52822016), (403, 50855936), (416, 49266688), (496, 41320448), (512, 40029184), (776, 26411008), (806, 25427968), (832, 24633344), (992, 20660224), (1024, 20014592), (1261, 16252928), (1552, 13205504), (1612, 12713984), (1664, 12316672), (1984, 10330112), (2048, 10007296), (2522, 8126464), (3007, 6815744), (3104, 6602752), (3224, 6356992), (3328, 6158336), (3968, 5165056), (4096, 5003648), (5044, 4063232), (6014, 3407872), (6208, 3301376), (6448, 3178496), (6656, 3079168), (7936, 2582528), (8192, 2501824), (10088, 2031616), (12028, 1703936), (12416, 1650688), (12896, 1589248), (13312, 1539584), (15872, 1291264), (16384, 1250912), (20176, 1015808), (24056, 851968), (24832, 825344), (25792, 794624), (26624, 769792), (31744, 645632), (32768, 625456), (39091, 524288), (40352, 507904), (48112, 425984), (49664, 412672), (51584, 397312), (53248, 384896), (63488, 322816), (65536, 312728), (78182, 262144), (80704, 253952), (96224, 212992), (99328, 206336), (103168, 198656), (106496, 192448), (126976, 161408), (131072, 156364)]