86821280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 192

約数和(自身を含む): 259096320

約数和(自身を除く): 172275040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 67, 70, 80, 89, 91, 104, 112, 130, 134, 140, 160, 178, 182, 208, 224, 260, 268, 280, 335, 356, 364, 416, 445, 455, 469, 520, 536, 560, 623, 670, 712, 728, 871, 890, 910, 938, 1040, 1072, 1120, 1157, 1246, 1340, 1424, 1456, 1742, 1780, 1820, 1876, 2080, 2144, 2314, 2345, 2492, 2680, 2848, 2912, 3115, 3484, 3560, 3640, 3752, 4355, 4628, 4690, 4984, 5360, 5785, 5963, 6097, 6230, 6968, 7120, 7280, 7504, 8099, 8710, 9256, 9380, 9968, 10720, 11570, 11926, 12194, 12460, 13936, 14240, 14560, 15008, 16198, 17420, 18512, 18760, 19936, 23140, 23852, 24388, 24920, 27872, 29815, 30485, 32396, 34840, 37024, 37520, 40495, 41741, 46280, 47704, 48776, 49840, 59630, 60970, 64792, 69680, 75040, 77519, 80990, 83482, 92560, 95408, 97552, 99680, 119260, 121940, 129584, 139360, 155038, 161980, 166964, 185120, 190816, 195104, 208705, 238520, 243880, 259168, 310076, 323960, 333928, 387595, 417410, 477040, 487760, 542633, 620152, 647920, 667856, 775190, 834820, 954080, 975520, 1085266, 1240304, 1295840, 1335712, 1550380, 1669640, 2170532, 2480608, 2713165, 3100760, 3339280, 4341064, 5426330, 6201520, 6678560, 8682128, 10852660, 12403040, 17364256, 21705320, 43410640, 86821280]

約数ペア:

[(1, 86821280), (2, 43410640), (4, 21705320), (5, 17364256), (7, 12403040), (8, 10852660), (10, 8682128), (13, 6678560), (14, 6201520), (16, 5426330), (20, 4341064), (26, 3339280), (28, 3100760), (32, 2713165), (35, 2480608), (40, 2170532), (52, 1669640), (56, 1550380), (65, 1335712), (67, 1295840), (70, 1240304), (80, 1085266), (89, 975520), (91, 954080), (104, 834820), (112, 775190), (130, 667856), (134, 647920), (140, 620152), (160, 542633), (178, 487760), (182, 477040), (208, 417410), (224, 387595), (260, 333928), (268, 323960), (280, 310076), (335, 259168), (356, 243880), (364, 238520), (416, 208705), (445, 195104), (455, 190816), (469, 185120), (520, 166964), (536, 161980), (560, 155038), (623, 139360), (670, 129584), (712, 121940), (728, 119260), (871, 99680), (890, 97552), (910, 95408), (938, 92560), (1040, 83482), (1072, 80990), (1120, 77519), (1157, 75040), (1246, 69680), (1340, 64792), (1424, 60970), (1456, 59630), (1742, 49840), (1780, 48776), (1820, 47704), (1876, 46280), (2080, 41741), (2144, 40495), (2314, 37520), (2345, 37024), (2492, 34840), (2680, 32396), (2848, 30485), (2912, 29815), (3115, 27872), (3484, 24920), (3560, 24388), (3640, 23852), (3752, 23140), (4355, 19936), (4628, 18760), (4690, 18512), (4984, 17420), (5360, 16198), (5785, 15008), (5963, 14560), (6097, 14240), (6230, 13936), (6968, 12460), (7120, 12194), (7280, 11926), (7504, 11570), (8099, 10720), (8710, 9968), (9256, 9380)]