20178963584

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1\times {\mathrm{367}}^1$

素因数の和:758

約数の個数: 128

約数和(自身を含む): 43890094080

約数和(自身を除く): 23711130496

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 173, 191, 208, 346, 367, 382, 416, 692, 734, 764, 832, 1384, 1468, 1528, 1664, 2249, 2483, 2768, 2936, 3056, 4498, 4771, 4966, 5536, 5872, 6112, 8996, 9542, 9932, 11072, 11744, 12224, 17992, 19084, 19864, 22144, 23488, 24448, 33043, 35984, 38168, 39728, 46976, 63491, 66086, 70097, 71968, 76336, 79456, 126982, 132172, 140194, 143936, 152672, 158912, 253964, 264344, 280388, 287872, 305344, 317824, 429559, 507928, 528688, 560776, 610688, 825383, 859118, 911261, 1015856, 1057376, 1121552, 1650766, 1718236, 1822522, 2031712, 2114752, 2243104, 3301532, 3436472, 3645044, 4063424, 4229504, 4486208, 6603064, 6872944, 7290088, 8126848, 8972416, 12126781, 13206128, 13745888, 14580176, 24253562, 26412256, 27491776, 29160352, 48507124, 52824512, 54983552, 58320704, 97014248, 105649024, 116641408, 157648153, 194028496, 315296306, 388056992, 630592612, 776113984, 1261185224, 1552227968, 2522370448, 5044740896, 10089481792, 20178963584]

約数ペア:

[(1, 20178963584), (2, 10089481792), (4, 5044740896), (8, 2522370448), (13, 1552227968), (16, 1261185224), (26, 776113984), (32, 630592612), (52, 388056992), (64, 315296306), (104, 194028496), (128, 157648153), (173, 116641408), (191, 105649024), (208, 97014248), (346, 58320704), (367, 54983552), (382, 52824512), (416, 48507124), (692, 29160352), (734, 27491776), (764, 26412256), (832, 24253562), (1384, 14580176), (1468, 13745888), (1528, 13206128), (1664, 12126781), (2249, 8972416), (2483, 8126848), (2768, 7290088), (2936, 6872944), (3056, 6603064), (4498, 4486208), (4771, 4229504), (4966, 4063424), (5536, 3645044), (5872, 3436472), (6112, 3301532), (8996, 2243104), (9542, 2114752), (9932, 2031712), (11072, 1822522), (11744, 1718236), (12224, 1650766), (17992, 1121552), (19084, 1057376), (19864, 1015856), (22144, 911261), (23488, 859118), (24448, 825383), (33043, 610688), (35984, 560776), (38168, 528688), (39728, 507928), (46976, 429559), (63491, 317824), (66086, 305344), (70097, 287872), (71968, 280388), (76336, 264344), (79456, 253964), (126982, 158912), (132172, 152672), (140194, 143936)]