51761320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 128

約数和(自身を含む): 137088000

約数和(自身を除く): 85326680

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 95, 104, 124, 130, 152, 155, 169, 190, 247, 248, 260, 310, 338, 380, 403, 494, 520, 589, 620, 676, 760, 806, 845, 988, 1178, 1235, 1240, 1352, 1612, 1690, 1976, 2015, 2197, 2356, 2470, 2945, 3211, 3224, 3380, 4030, 4394, 4712, 4940, 5239, 5890, 6422, 6760, 7657, 8060, 8788, 9880, 10478, 10985, 11780, 12844, 15314, 16055, 16120, 17576, 20956, 21970, 23560, 25688, 26195, 30628, 32110, 38285, 41743, 41912, 43940, 52390, 61256, 64220, 68107, 76570, 83486, 87880, 99541, 104780, 128440, 136214, 153140, 166972, 199082, 208715, 209560, 272428, 306280, 333944, 340535, 398164, 417430, 497705, 544856, 681070, 796328, 834860, 995410, 1294033, 1362140, 1669720, 1990820, 2588066, 2724280, 3981640, 5176132, 6470165, 10352264, 12940330, 25880660, 51761320]

約数ペア:

[(1, 51761320), (2, 25880660), (4, 12940330), (5, 10352264), (8, 6470165), (10, 5176132), (13, 3981640), (19, 2724280), (20, 2588066), (26, 1990820), (31, 1669720), (38, 1362140), (40, 1294033), (52, 995410), (62, 834860), (65, 796328), (76, 681070), (95, 544856), (104, 497705), (124, 417430), (130, 398164), (152, 340535), (155, 333944), (169, 306280), (190, 272428), (247, 209560), (248, 208715), (260, 199082), (310, 166972), (338, 153140), (380, 136214), (403, 128440), (494, 104780), (520, 99541), (589, 87880), (620, 83486), (676, 76570), (760, 68107), (806, 64220), (845, 61256), (988, 52390), (1178, 43940), (1235, 41912), (1240, 41743), (1352, 38285), (1612, 32110), (1690, 30628), (1976, 26195), (2015, 25688), (2197, 23560), (2356, 21970), (2470, 20956), (2945, 17576), (3211, 16120), (3224, 16055), (3380, 15314), (4030, 12844), (4394, 11780), (4712, 10985), (4940, 10478), (5239, 9880), (5890, 8788), (6422, 8060), (6760, 7657)]