19987943904

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{12941}}^1$

素因数の和:13161

約数の個数: 144

約数和(自身を含む): 59018004864

約数和(自身を除く): 39030060960

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 173, 186, 248, 279, 288, 346, 372, 496, 519, 558, 692, 744, 992, 1038, 1116, 1384, 1488, 1557, 2076, 2232, 2768, 2976, 3114, 4152, 4464, 5363, 5536, 6228, 8304, 8928, 10726, 12456, 12941, 16089, 16608, 21452, 24912, 25882, 32178, 38823, 42904, 48267, 49824, 51764, 64356, 77646, 85808, 96534, 103528, 116469, 128712, 155292, 171616, 193068, 207056, 232938, 257424, 310584, 386136, 401171, 414112, 465876, 514848, 621168, 772272, 802342, 931752, 1203513, 1242336, 1544544, 1604684, 1863504, 2238793, 2407026, 3209368, 3610539, 3727008, 4477586, 4814052, 6418736, 6716379, 7221078, 8955172, 9628104, 12837472, 13432758, 14442156, 17910344, 19256208, 20149137, 26865516, 28884312, 35820688, 38512416, 40298274, 53731032, 57768624, 69402583, 71641376, 80596548, 107462064, 115537248, 138805166, 161193096, 208207749, 214924128, 277610332, 322386192, 416415498, 555220664, 624623247, 644772384, 832830996, 1110441328, 1249246494, 1665661992, 2220882656, 2498492988, 3331323984, 4996985976, 6662647968, 9993971952, 19987943904]

約数ペア:

[(1, 19987943904), (2, 9993971952), (3, 6662647968), (4, 4996985976), (6, 3331323984), (8, 2498492988), (9, 2220882656), (12, 1665661992), (16, 1249246494), (18, 1110441328), (24, 832830996), (31, 644772384), (32, 624623247), (36, 555220664), (48, 416415498), (62, 322386192), (72, 277610332), (93, 214924128), (96, 208207749), (124, 161193096), (144, 138805166), (173, 115537248), (186, 107462064), (248, 80596548), (279, 71641376), (288, 69402583), (346, 57768624), (372, 53731032), (496, 40298274), (519, 38512416), (558, 35820688), (692, 28884312), (744, 26865516), (992, 20149137), (1038, 19256208), (1116, 17910344), (1384, 14442156), (1488, 13432758), (1557, 12837472), (2076, 9628104), (2232, 8955172), (2768, 7221078), (2976, 6716379), (3114, 6418736), (4152, 4814052), (4464, 4477586), (5363, 3727008), (5536, 3610539), (6228, 3209368), (8304, 2407026), (8928, 2238793), (10726, 1863504), (12456, 1604684), (12941, 1544544), (16089, 1242336), (16608, 1203513), (21452, 931752), (24912, 802342), (25882, 772272), (32178, 621168), (38823, 514848), (42904, 465876), (48267, 414112), (49824, 401171), (51764, 386136), (64356, 310584), (77646, 257424), (85808, 232938), (96534, 207056), (103528, 193068), (116469, 171616), (128712, 155292)]